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|Thursday, May 16th, 2013|
|ASUS F75V adapter
Review Asus VivoBook U38DT Subnotebook and battery life
The VivoBook U38DT-R3001H is for mobile users who need a compact, lightweight and portable device. Under the hood of the aluminum chassis is primarily AMD hardware.
ASUS A85D Battery Let us start with a few specs before we get to the details: Asus has decided to use the A8-4555M CPU. The inexpensive ULV model is primarily focused on newcomer and modest users with a clock of 1.6 up to 2.4 GHz. The dedicated graphics card performs better. Depending on the application the performance of the Radeon HD 8550M is in the low or mainstream area. ASUS A85DE Charger
The memory equipment is midrange with 4 GB DDR3 RAM (1600 MHz). While 2 GB are in a common slot, the remaining two GB are soldered onto the mainboard. To avoid storage problems Asus integrates a 500 GB hard drive with 5,400 rpm. The anti-glare display with a resolution of 1366x768 is suitable for the notebook class. The operating system is Windows 8 64-bit. ASUS A85DR Battery
The excellent case is one of the great strengths of the VivoBook U38DT. Asus almost exclusively uses brushed aluminum that gives the 13-inch device a great quality impression. The silver-gray colored surfaces are exceptionally sophisticated. Except for the manufacturer labels (cover & display frame) the 13-inch device is matte finished throughout. Very few notebooks are that dirt resistant. Compared to other devices the surfaces are pretty durable. ASUS A85N Battery
The praise continues with the good stability: Despite the thin case the surfaces hardly dent even under high pressure. Smaller weaknesses can be found with the touchpad and in the center of the keyboard. The subnotebook also offers a great performance when it comes to the looks. University, office or desk at home: The 13-inch device looks good in every environment. ASUS A85V Battery
Because of the low height (just under two centimeters [~0.79 inches] at the thickest point) and the lightweight construction (1.55 kg/~3.42 pounds) the mobility of the device is very good. Standard notebooks appear enormous and bulky next to the U38DT. Even the light (236 grams/~0.52 pounds) 65 Watt power supply unit is directly connected to the socket and at 75 x 75 x 28 millimeters (~2.95 x 2.95 x 1.10 inches) also surprisingly small. ASUS A85VD Battery If you are often on the road you do not want to be without it. Thanks to the small dimensions the subnotebooks becomes the ideal companion.
In the category of build quality the manufacturer does not disappoint as well. The material transitions of our review sample were very clean. The hinges are also well designed. The base unit does not swing: the device can be opened with one hand. Great: Vibrations have almost no impact on the cover. ASUS A85VJ Battery
A special tool is required to access the inside of the subnotebook. The reason is that the bottom cover is made of a single metal plate and attached to the case with 12 Torx screws. The absence of a typical maintenance cover, which allows fast access to the memory and hard drive, might have a negative impact for some users. To avoid damage to the shop unit we did not remove the bottom cover as an exception. ASUS A85VM Charger
The amount of preinstalled software is small: 25 applications are an indication of a reasonably cleaned up hard drive. In the windows control panel (right picture) the buyer discovers primarily drivers and manufacturer tools. Numerous elements are already known from other Asus notebooks. The "Splendid technology", for example, tunes the color reproduction. ASUS A85VS Battery "Power4Gear Hybrid" handles the energy settings. The "USB Charger Plus" supports the charging of external USB devices.
The scope of delivery is pretty standard. Additional to the port adapters are; a warranty card, a manual and zip ties. Absolute highlight is the brown colored and pretty tight notebook bag. The leather cover is attached to the textured main body via Velcro. The black inside provides a good basic protection. Driver and Windows DVDs are not included. For the system recovery you can use the Windows function Restore (PC settings, general). ASUS F45 Battery
The dark gray chiclet keyboard leaves a good impression. Thanks to generous key lettering and the white illumination, which can be adjusted in multiple steps, the result is a very convenient input. Typical for Asus is the uneven illumination, but is has almost no negative impact for everyday use. ASUS F45A Battery
The key size (mainly 16 x 14 millimeters/~0.63 x 0.55 inches) should also be convenient for most users. Be aware the arrow keys and the keys of the F-row are pretty small (only 8 millimeters/~0.31 inches high). The layout is okay, yet the combined Ins/Del key was distracting. There is not much to complain about with the keyboard feeling: pressure point and stroke are designed sufficiently. ASUS F45C Battery Nice details like the slightly rounded edges are other factors for the positive overall picture. With our experiences the keyboard is suitable for frequent writers.
As usual, with Fn-combinations several comfort functions can be activated. Besides the brightness the volume can also be adjusted. A deactivation/activation of the wireless module, the display and the touchpad is also possible.
The minimally lowered touchpad is strikingly similar to the mouse replacement of the recently reviewed Lenovo IdeaPad Y500. Similarities do not only come with the dimensions (10.5 x 7.0 centimeters/~4.13 x 2.76 inches) but also with the buttons. ASUS F45U Battery The latter are directly integrated into the smooth touchpad surface.
The corresponding mechanisms are definitely a matter of taste. While one appreciates the seamless transition to the button area, the other criticizes the limited stability. Compared to the Lenovo IdeaPad Y500 the touchpad cannot be pushed in so deeply but the stability is not quite perfect. The convenient gestures that are presented clearly in the Smart Gesture software (see screenshot above) also have their flaws. ASUS F45V Battery The zoom function is especially unruly.
Although the precision is at a decent level, Asus could put some work into the accuracy of the touchpad. All in all it is still enough for the rating "Good".
The 1.6 to 2.4 GHz clocked A8-4555M belongs to the family of power efficient ULV processors and is produced, like its Trinity siblings, in the outdated 32 nm process (Intel is long producing in the 22 nm process). With 19 Watts the Thermal Design Power is significantly reduced compared to the standard models. ASUS F45VD Battery The similar clocked quad-core A8-3500M (1.5-2.4 GHz), for example, has almost twice the TPD with 35 Watts.
The A8-3555M can only process one thread per core simultaneously because of the lack of Hyperthreading or similar parallelization technology. Four MB L2 cache seem pretty much compared to Intel products, however the Core-i generation also has a 3 to 8 MB large L3 cache. The immediate Intel competitors Core i5-2537M (1.4-2.3 GHz) and Core i5-2467M (1.6-2.3 GHz) cannot compete with 1.3 billion transistors.ASUS F45VD1 Battery Both Sandy-Bridge representatives "only" have 624 million transistors.
The manufacturer has a big problem with the processor. When more than one core is in use, the clock of the A8-4555M is temporarily reduced from the standard 1.6 GHz to a meager 900 MHz. Our measurements show that the throttling can have a massive impact on the performance. We checked the energy settings repeatedly (Windows control panel and AMD drivers) and the results with the second review unit were too low as well. ASUS F55 Battery We assume a general problem with the VivoBook U38DT.
During use of a single-core the situation is more relaxed. According to the tool CPU-Z the A8-4555M does not come close to the maximum available turbo clock, but at least it is 200 MHz more than the base clock with 1.8 GHz.
The low CPU performance is the weakest point of the subnotebook. The Cinebench R11.5 score is very low with 0.42 points for the single-core rendering and 0.78 points for multi-core rendering. ASUS F55A Battery The already mentioned Core i5-2537M is more than 100% faster with 0.9 and 1.93 points (Samsung Series 5 530U4C-S02). Even the slow 1.4 GHz Core i3-2367M with 0.53 and 1.32 points is superior (Asus UX32A-R3001V).
If we have a look at the Lenovo IdeaPad S405 we can see that the A8-4555M without throttling and a higher turbo margin achieves 0.57 points (+36%) and 1.24 points (+59%). ASUS F55C Battery We can only hope Asus fixes the problem with the clocks as soon as possible.
The performance of the AMD graphics very much depends on the requirements of the application being used. The higher the CPU influence, the higher is the limiting factor of the throttling A8-4555M.
The subnotebook handles the 3DMark 11 (1280x720, "Performance Preset") quite well. With a GPU score of 1,307 points the Radeon HD 8550M is on the same level as the GeForce GT 640M LE (1,259 points @ Fujitsu LifeBook AH532) or Radeon HD 7690M XT (1,346 points @ HP Pavilion dv7-6c07eg). For comparison: The Radeon HD 7600G only manages half of that (628 points @ Lenovo IdeaPad S405). ASUS F55CR Battery
The result of the Unigine-Heaven-2.1 benchmark (1280 x 1024, High, Tessellation normal) is not very overwhelming. With 14.1 fps it can compete with the GeForce GT 630M at most (14.3 fps @ Medion Akoya P6633).
Because of the second-class hard drive and the pretty slow CPU the performance of the overall system is in the bottom third. 1,714 points for the PCMark 7 won't impress anybody. With this result the 13-inch device can only compete against notebooks with a cheap Intel B-series processor (Pentium B950 to B980). ASUS F55U Charger Among others we have the Lenovo IdeaPad G580-MBBG3GE (1,670 points), the HP Compaq Presario CQ58-148SG (1,700 points), the HP Pavilion g6-2200sg (1,723 points) or the Lenovo IdeaPad N581-MBA4YGE (1,742 points).
Gamers should avoid the VivoBook U38DT. The low clock of the A8-4555M pulls the performance down to a level that only modest and/or older games can be played with more than 25 fps. From the 25 tested titles only 10 were fairly playable. ASUS F55V Battery Most of the time the user has to live with minimum details and a slightly reduced resolution.
And even if the frame rate suggests a smooth experience on paper, during gaming there are constantly annoying frame drops due to reloading - whatever settings you select. Even the integrated Intel HD 4000 processor graphics performs better sometimes. Without the CPU throttling the performance should be much better. ASUS F55VD Battery
While idling the noise level is similar to the Asus UX32A-R3001V (Core i3-2637M & HD Graphics 3000) we reviewed a few months ago. Just under 31 dB (A) is quite low, although the 13-inch device is never completely silent. Even with little load the user hears a slight noise and a subtle clatter of the hard drive. Simple tasks like MS Office, video or web browsing are also not disturbed by a distracting noise level. ASUS F55VDR adapter
With CPU-intensive tasks (3D applications etc.) the sound intensity rises to a proper but not annoying level. From a distance of 15 centimeters (~6 inches) we measured an average 38 dB (A) for the 3DMark 06. Although the fan noise is pretty high-pitched (and makes the notebook subjectively louder than the values would suggest) it can be tolerated pretty well. ASUS F75 Battery More than 41 dB (A) were not possible even in our stress test. The identically priced UX32A (800 Euros/~$1092) has no dedicated graphics and is quieter under load (36-38 dB (A)).
The temperature development was good without exceptions. During idle the whole chassis remained pleasantly cool: Just under 27 °C (80.6 °F) provides convenient long-term use. At higher loads the rear area of the notebook gets noticeably warmer. ASUS F75A Battery A maximum of 43 °C (109.4 °F at the top) or 38 °C (100.4 °F at the bottom) are non-problematic. The palm rest reaches a maximum value of 31 °C (87.8 °F) - a moderate result.
Overheating of the hardware is no problem. After one hour maximum load (FurMark + Prime95) the graphics and the processor remain at around 80 °C (176 °F).
The switchable graphics make sure the 13-inch device wastes no unnecessary power. With 10 to 17 Watts the consumption during idle is slightly above the Asus UX32VD with a 1.7 GHz Core i5-3317U and a GeForce GT 620M (6-13 Watts). ASUS F75A1 Battery Under load the VivoBook U38DT is more frugal (42-52 Watts against 45-61 Watts).
The non-removable battery has a capacity of only 48 Wh and the runtimes are very limited. Under load and with maximum brightness the battery keeps the device running for 1.5 hours, with wireless Internet browsing and medium brightness just under 4 hours are possible. The result of the idle test is not listed because of some strange values (Battery Eater seems to be always assigned to the Radeon HD 8550M). ASUS F75V adapter A DVD test was not performed due to the lack of an optical drive.
If you overlook the limited port equipment and the annoying throttling (multi-tasking reduces the CPU clock to 900 MHz), Asus made almost everything right with the U38DT-R3001H.
The main attraction is the very stylish and very lightweight metal case (only 1.55 kg/~3.42 pounds). Such a high build quality usually cannot be found in devices less than 1000 Euros (~$1365). Apart from some small details the input devices are also very good. ASUS F75VD Battery The manufacturer shows no weakness with the display either. The matte HD panel offers decent to good values.
Considering the low notebook height (less than two centimeters/~0.79 inches) we find the performance reasonable. Further positive aspects are the moderate temperature and noise levels. Even under heavy load the 13-inch device does not get excessively loud or warm. The included notebook bag helps to overlook the missing driver and recovery DVDs. ASUS F75VD1 Charger The battery runtime could have been better for our taste. Runtimes over 4 hours are only possible with little load and reduced brightness.
All in all we can still give a clear buy recommendation for the U38DT-R3001H. Price conscious users who want a small device with high mobility are at the right place.
|Tuesday, May 14th, 2013|
|hp 671567-831 Charger
Review HP EliteBook 8770w DreamColor Notebook and battery life
The workstation portfolio of Hewlett Packard is extensive. The offering ranges from 15- to 17-inch models (even a few mobile 14-inch models are included). The two smaller workstations, HP EliteBook 8470w and HP EliteBook 8570w, have proven their worth in past reviews. hp WD548AA-ABB Charger Now, we take a look at the HP EliteBook 8770w. The large top model offers a few unique features: the strongest hardware and most extensive configuration options. The large case offers a lot of space and good cooling. Our test model will have to compete with models from HP and other manufacturers. For example, the Dell Precision M6700, the Fujitsu Celsius H920 and Bullman's E-class are very powerful, 17-inch workstations with many appealing features. hp WD549AA Charger
The HP EliteBook 8770W offers 12 different configurations. The prices start at 1,650 Euros (~$2,202) and end at 5,000 Euros (~$6,674). The variety of available components is as large as the price span. A multitude of Intel Core i5 and Intel Core i7 processors cover the CPU section. Four different professional graphic cards and three different displays make up the graphics section. hp CC03 Charger Next, the configuration lists a variety of RAM modules and storage devices. The OS is Windows 7 Professional, as Windows 8 is currently only available here and there.
Our test model uses an Intel Core i7-3610QM CPU, an Nvidia Quadro K4000M graphics card, 8 GB RAM, a 750 GB HDD, 24 GB SLC cache module, Windows 7 Professional and the infamous DreamColor display with RGB LEDs. The price lies at 4,300 Euros (~$5,739). hp CC06 Battery Replacement
The heavy case is made of different shades of metal which creates an intriguing green-grey color scheme. The tapered sides give the model a slimmer look. The test model weighs 3.92 kg (according to HP - minimum is 3.47 kg with SSD and empty modules). Combined with the 1 kg power adapter, bag and accessories, the set will weigh up to 6 kg. hp CC06X Charger
The high weight translates to high stability, as the various tests of the MIL-STD810G standard will attest. The entire work area, including the hand-rest regions and the keyboard, is sturdy. Only the area around the "Enter" key is prone to bend a little. The hinges do a good job of keeping the screen in position, while allowing the user to open the laptop with a single hand. The laptop base does not rise when it is opened. hp CC06XL Charger The display border can be bent a little, but in comparison to the competition, it is very sturdy.
The bottom of the laptop is a mix of synthetic material and metal. The battery is placed at the rear, secured by a slide mechanism. A second slider unlocks the large bottom flap which hides most of the hardware. Thankfully, the user will not have to remove any screws. The rubber feet are placed directly onto the case. hp CC09 Battery Replacement
The EliteBook 8770w is equipped with everything the heart desires. Sadly, the selection is slightly limited for the test model with the DreamColor display - no HSPA or LTE modem can be combined with our model. The WLAN connectivity is provided by Intel's Centrino Advanced-N 6205 module. This module has two antennas and operates at the 2.4 and 5 GHz frequencies (theoretically up to 300 Mbit/s). hp HSTNN-CB2F Charger Although this module supports Intel's Wireless Display technology, HP does not seem to have activated this function. Bluetooth 4.0, a 720p webcam and Gigabit LAN round off the interesting package.
HP includes an extensive security packet for the EliteBook. Trusted Platform Module 1.2, fingerprint sensor, BIOS password, facial recognition, Smart Card reader and Computrace Anti Theft secure the laptop. These various features are controlled using HP's Security Manager ProtectTools, which can be found in the Control Panel. hp HSTNN-DB2F Charger Additional information about notebook security can be found in our FAQ.
As is typical, HP does not include accessories for the EliteBook 8770w. However, the manufacturer does offer a multitude of accessories for the workstation. Various optical drives, hard drives, SSDs and an empty module are offered for the Upgrade Bay. The HP Upgrade module includes a 750 GB hard drive (H2P66AA - 224 Euros, ~$299). hp HSTNN-E04C Charger A battery can not be installed in the slot like in the Dell Latitude E6530. HP's docking solution is also interesting. The HP Advanced docking station (2 x DVI and 2 x DisplayPort) can run up to 5 displays (AMD Eyefinity). Our test model can control up to 4 displays thanks to the Nvidia Quadro K4000M.
The large maintenance flap uses no screws. Thanks to the slide mechanism, it can easily and quickly be removed. This grants the user access to the most important hardware components. Although the cooler fan is half-covered, it is possible to clean it. hp HSTNN-F08C Charger The two RAM slots on the bottom are empty and offer room for upgrades. Two additional slots under the keyboard require more effort to find, but are important if the user plans to install more than 16 GB of RAM. Two regular slots and the Upgrade Bay are available for the storage devices. Although the second slot is empty in our test model, we did not receive a disk frame or screws in the delivery. hp HSTNN-F11C Battery Replacement
The performance of the HP EliteBook 8770w is at the typical workstation level. The CPU is a quad-core Intel Core i7-3610QM, which offers enough performance for many different scenarios. The Intel HD Graphics 4000 IGP (Integrated Graphics Processor) cannot be used. The manufacturer compensates by providing the Nvidia Quadro K4000M-GPU, which has good performance and scores well in all areas. hp HSTNN-I90C Charger
The RAM amounts to 2 x 4 GB (entry-level), but it can be quickly upgraded to 16 or 24 GB using the two empty slots. The models with the quad-core CPU can support up to 32 GB. The dual-core CPUs are limited to two slots (16 GB). The storage device is a combination of a 750 GB HDD in RAID 0 with an Intel 24 GB cache module. This hardware may appear to be quite meager given the price tag of 4,300 Euros (~$5,739), but as HP asks for an additional 955 Euros (~$1,274) just for the DreamColor display, the price seems to be appropriate. Charger hp HSTNN-I91C
The Intel Core i7-3610QM-CPU is used in different notebook classes and can be described as the "bread and butter" CPU. Hyperthreading and TurboBoost technologies allow the CPU to offer the maximum possible performance at any time. In Cinebench R10 64 bit, the processor scores 5,559 (Single) and 21,357 (Multi) points. Additional numbers can be found in our CPU benchmark list. hp HSTNN-LB2F Charger
In the practical test, the CPU achieves 47.1x speed in the iTunes audio conversion (typical single-thread task). Pure CPU video conversion using Cyberlink MediaEspresso places the Intel Core i7-3610QM near the top of the benchmark list. However, a few faster processors manage to beat it to the throne.
On battery, a 30% performance drop is to be expected. Cinebench R11.5 (Multi) was run by the CPU at 2.3 GHz instead of 3.1 GHz. Thus, the result drops from 6.2 to 4.5 points. Charger hp HSTNN-LB2G
CPU throttling did not crop up even after multiple hours of high load on the CPU and GPU. The CPU ran at a constant 3.1 GHz (multi-core load).
The system performance takes all hardware into account. This section reveals that the workstation is very balanced. Only the storage devices, despite the Intel cache module, slow down the system slightly. The cache module enables quicker start of programs and the OS, thus making the daily work more fluid. hp HSTNN-LB2H Charger Of course, this module cannot hope to reach the speeds of a full-sized SSD, but it serves as a slower alternative. PC Mark Vantage records 11,265 points on the HP EliteBook 8770w, while PC Mark 7 offers 4,360 points. These are very good results and indicate no limitations while using any program.
HP offers a variety of possible combinations of storage devices for the EliteBook 8770w. Theoretically, up to four drives can be installed as the laptop has an mSATA slot, two regular slots and the modular slot. hp HSTNN-LB2I Charger We have a regular 750 GB hard drive from Seagate in the test model. The HDD operates at 7200 rpm and is combined with an Intel SSD cache module. This duo is set in the RAID 0 connection. The cache memory is made of single-level chips and can be found in the mSATA slot.
The test results are sobering. The maximum transfer rate of 116 MB/s and an access time of 15 ms is only a good result when compared to traditional HDDs. However, the programs and the OS start faster. hp HSTNN-OB2F Charger Other supported RAID configurations (depending on the number of drives) are RAID 1 and RAID 5 (minimum of 3 drives required). The combination of an SSD (for OS and programs) and the traditional HDD (for data storage) is possible with the EliteBook 8770w thanks to the two regular drive slots.
The professional Nvidia Quadro K4000M GPU is one of the most powerful graphics processors available for professionals. It is only topped by the Nvidia Quadro K5000M. The GPU has a 256 bit memory interface, 4 GB of dedicated GDDR5 graphics memory and operates at 600 MHz.hp HSTNN-OB2G Charger In comparison to consumer graphic cards, the GPU offers performance at the level of an Nvidia GeForce GTX 670MX. The Intel HD Graphics 4000 IGP of the processor is not used. This means that the user cannot make use of features like Intel's Quick Sync technology for conversion. Additional information about the IGP can be found here.
The traditional graphic benchmarks like 3D Mark Vantage, 3D Mark 11 and Cinebench 11.5 OpenGL Shading deliver 15,362, 3,673 and 70.87 points. hp HSTNN-OB2N Charger These are high results and indicate high performance for regular 3D tasks.
The strength of the Quadro GPUs is the special BIOS and the Quadro graphics driver, which is optimized for professional applications. This allows the GPU to score high scores with professional applications, especially CAD programs, unlike conventional GPUs of the GeForce series. hp HSTNN-UB2F Charger A strong competitor of the Quadro GPUs is the AMD FirePro series which have the same purpose. We used the SPECViewperf.11 benchmark to record the performance of the professional GPUs. This benchmark runs a selection of CAD programs in different modes at a resolution of 1920x1080 pixels. Although the Quadro K4000M has higher performance on paper, there are few sections of the benchmark where it could show it. hp HSTNN-W81C Charger For Lightwave, Maya and Solidworks especially, the supposedly weaker AMD FirePro M6000 is a better choice.
The results (especially in the professional tests) depend heavily on the driver used. A new driver can change the score considerably. We used the standard graphics driver installed by the manufacturer and the latest update of November 2012 (306.96) posted by HP. The SPECViewPerf.11 results are nigh identical. With Lightwave and Siemens NX, small improvements are noticeable, but the Pro Engineer ends slightly lower. hp QK639AA adapter
We use the Luxmark 2.0 benchmark to check the OpenCL performance. The benchmark checks the ray tracing properties of the GPU (light/shadow processing of 3D objects). In the Sala test, we record 221 points and 101 points in the Room test. It is quite hard to place the GPU on a ranking list as we currently have few results for comparison. Still, in comparison to an AMD GPU, a significantly weaker ray tracing performance is noticeable. hp QK640AA Charger
An additional use of the GPU is the video conversion using the CUDA engine. For this test, we will employ the media converter, MediaEspresso from Cyberlink. Our two test videos were processed relatively quickly with a CPU load of 12-16%: 98 and 134 seconds. Thanks to the transfer of the processing to the GPU, the system has enough processing power left over for other tasks. hp QK642AA Charger
On battery, the performance is reduced by around 40%. The GPU runs at a much lower 270 MHz. In Cinebench R11.5 OpenGL Shading, the laptop scores 42 instead of 70 points.
The gaming performance of the Quadro GPU is similar to that of equivalent GeForce GPUs. We did not notice any performance drops, graphic errors or other issues using the special Quadro driver. All-in-all, the performance is enough for high to max settings, which allows the user to enjoy a full gaming experience. Only in Total War: Shogun 2, Anno 2070 and Battlefield 3 does the workstation struggle with the FullHD resolution and max settings. hp QK643AA Charger
While idle, the noise emissions are dominated by the HDD: relatively loud at 32.7 dB(A). However, the HDD is only audible when the user switches off the "Fan always on" option in the BIOS. Otherwise, the cooling system drones out the storage device with its constant 34.4 dB(A) (even the HDD clatters during data access - 33.5 dB(A)). hp ST09 Charger
At medium load, the emissions rise to 40.9 dB(A) and at full load, the user has to bear an annoying 50.6 dB(A). At this level, the workstation is fully occupied and cannot be used for any other task. In everyday life, full load like this (we used Furmark and Prime95 simultaneously) is hard to find. While running SPECViewperf.11, we recorded 41.2 dB(A) and during the CUDA video conversion, the emissions were a comfortable 37.9 dB(A). HP 671277-171 Charger High-frequency noises or an uncomfortable fan operation were not issues which popped up in our test.
HP keeps the surface temperatures under grip. Even at full load, we did not measure more than 45.1 °C on the bottom. This would not be comfortable for use on the lap, but that is not a desired operating mode for the 8770w. However, on the table, this is an acceptable temperature level and indicates a well-working cooling system. The HP EliteBook 8770w uses a single fan, unlike the Dell Precision M6700. HP 671518-800 Charger We did not notice any negative aspects of this choice. The hand-rest regions stay under 30 °C - comfortably cool. None of the other work areas reach high temperatures. At low load, the temperature emissions range from 30 to 34.2 °C. If the "Fan always on" option is turned on, the system stays at 25 - 29.3 °C. The interior of the laptop does not hit any critical levels. Throttling? None. HP 671602-001 Charger
The power consumption is a minimum of 24.7 W - a large disadvantage of the HP EliteBook 8770w. As only the Nvidia Quadro K4000M can be used, there is no way to lower the idle or low load power consumption (by using the Intel HD Graphics 4000 and turning the dedicated GPU off). The power consumption rises up to 40.7 - 149 W (max) depending on the load and power profile. hp 671567-831 Charger The display brightness itself contributes 10 W (difference between minimum and max brightness). CUDA video conversion requires around 83 W. The power adapter has a 230 W rating and we did not notice throttling of the power adapter.
The 75 Wh battery offers standard capacity for a business notebook. However, this will not suffice for the power-hungry workstation and results in short runtimes. The battery life would have been far shorter had the performance not been reduced on battery mode. Theoretically, a max of 3 hours and a minimum of 30 minutes would be possible. hp H2L56AA Charger
The actual results reached by Battery Eater Reader's test ("Power Saver" profile), minimum brightness, modules off) are 4 hours and the Battery Eater Classic test ("High Performance" mode, max brightness, everything on) records 1:30 hours. The realistic WLAN test (159 cd/m², "Power Saver" profile, wireless modules on) and DVD playback test (max brightness, wireless modules off, "Power Saver" profile) record around 2 hours of battery use. hp H2L55AA ABB Charger
The battery life can be extended a little, by purchasing a stronger 83 or 100 Wh battery from HP. Together with the standard battery this will extend the run time to 4 - 5 hours.
The HP EliteBook 8770w impresses us in all workstation ratings. CPU and GPU performance are top class and will suffice for almost any possible scenario.
The connectivity is extensive and offers a flexible use of the interfaces. The positioning of the ports is not so good, as most of the important interfaces are placed up front, right in the middle of the work area. hp HSTNN-LB3N Charger
The possible upgrades are many. The bottom flap does not use screws and is easy to remove. Once removed, it grants the user access to a variety of empty slots which can be used to upgrade the workstation in many ways.
The undisputed highlight of this workstation is the DreamColor display. Except for the tiny blue strip at a remote location, we have nothing to complain about. The color space coverage, contrast, brightness and viewing angles of our test model are hard to beat. hp HSTNN-LB3P adapter
In short, the HP EliteBook 8770w offers high performance and connectivity, but the user has to accept severely limited mobility. The battery life is around the 2 hour mark and the relatively high weight and case size further limit mobility. Noise emissions of a high-performance workstation, such as this one, are expected to be quite high. However, our test model operates at an unnecessarily high level, which can be changed in the BIOS.
|Friday, May 10th, 2013|
|Inspiron 1440 adapter
Review Acer Aspire TimelineU M3-581PTG Ultrabook and battery life
2013 is the year for touchscreen Ultrabooks – that is what chip giant Intel and manufacturers like Asus and Acer claim. The goal is to boost the sale of Windows 8 laptops and to make these mobile devices more user-friendly. Acer TravelMate 3270 adapter
After testing the HP Spectre TouchSmart 15 and the Toshiba Satellite U920t-100, we now turn to the Acer Aspire TimelineU M3-581PTG. This test model has a chance to show what it has to offer in our in-depth review. The 15-inch laptop carries a 1,000 Euro (~$1310) price tag and runs on the Intel Core i5-3337U, which, combined with 4 GB RAM and a large 256 GB SSD, ensures fluid program performance. Thankfully, unlike many of its competitors, our test model is equipped with an optical drive and a dedicated GPU. Acer TravelMate 3270-6569 adapterThe recently released Nvidia GeForce GT 730M is ready and eager to tackle the newest games and is conservative enough to satisfy the TDP requirements of an Ultrabook. Despite all this hardware prowess, Acer promises up to 8 hours of run time.
The chassis of the TimelineU M3 is similar to its predecessor. Dark black and gray tones still dominate the matte-glossy look, which gives the Ultrabook a luxurious appeal. Thankfully, the glossy surfaces are quite resistant to smudges and the user will only have to worry about cleaning off the dust that accumulates over time. Acer TravelMate 3273WXMi adapter
A thickness of 9.7 mm (~0.38 inches) and weight of 2.3 kgs (~5.1 pounds) makes the M3 much heavier/thicker than its 13 or 14-inch counterparts - this is the price you have to pay for a larger screen. A small border (about 15 mm (~0.59 inches) - on the sides and above) frames the panel and gives a graceful touch to the TimelineU.
Acer TravelMate 3274WXMi adapter Acer primarily used metals for the M5 series, but our test model consists heavily of synthetic materials. Overall, the sturdiness is quite high, but in the usual problem areas, like above the DVD drive, weak points can be found. The display cover uses an aluminum alloy, which offers great sturdiness. We would also like to praise the stiff hinges, which do a good job of keeping the screen stable.
The good workmanship is tainted by a flaw in our test model: the front and back of the display are not properly fused together. This results in a sharp gap on the top left edge that is a few millimeters long. Even if our test model is just a single bad egg, we expect more of a laptop, which carries such a high price tag. Acer Travelmate323x adapter
The Qualcomm module (formerly known as Atheros) of our test model is named the AR5BWB222. This entry-level model only supports IEEE standards 802.11b/g/n and thus cannot access any of the networks operating at the 5-GHz frequency. In addition, the maximum transfer rate is limited at 150 MB/s, as the module only operates in single stream (1x1). Looking past these limitations, we found the module to establish and maintain stable connections and have good range. The TimelineU also supports Bluetooth 4.0 + HS. Aspire 9100 adapter
An integrated 1.3 MP webcam is provided for taking pictures and video. However, the meager quality of these captures will make few users happy. Even in comparison to the other poorly equipped competitors, our test model has poor picture and video quality. The clear microphone does a much better job and the user will hardly require an additional headset.
The delivery of the notebook includes a 65 W power adapter and the typical brochures. The included dust cloth will go a long way in keeping the touchscreen clean. The M-Disc DVD is a nice extra: it can be written on with the internal burner and read by any DVD drive. According to the manufacturer, it can last up to 1,000 years.
The preinstalled Windows 8 is filled with a multitude of Apps, the majority of which are hardly useful. A clean installation is recommended. Most of these Apps are demos or mini games like "Cut the Rope", which are essentially provided to test out the touchscreen.
Thanks to the wide 15-inch case, the manufacturer has enough room for a chiclet keyboard with an integrated numeric pad. The gray 15 x 15 mm (~0.59 inch) keys have a comfortable surface, but lack lighting. The user will have to get accustomed to the keyboard as it has some unique features, like the left "Shift" key, which is quite small. With the exception of these, the keyboard layout is normal.
The typing feel is satisfying although we would have liked a stronger pressure point and a longer stroke distance. No keys clatter or jam, as may be expected of cheap plastic. Thanks to the high sturdiness and clean workmanship, the TimelineU scores highly.
In comparison, the touchpad quality is lower. The good dimensions (10.5 x 7.8 cms/~4.1 x 3.1 inches) and good sliding properties are appealing. This touchpad originates from the manufacturer Elan. A serious flaw is the delayed reaction time. The cursor feels sluggish, which makes it hard to navigate accurately and quickly. The touchpad supports all the typical multi-touch gestures (with two or four fingers). These can be configured to suit your personal preferences.
Acer has kept to the current trend by integrating the mouse keys into the touchpad surface. Apparently, the touchpad of our test model was poorly installed: the left key is recognized by pressing down about 1 mm but the right key practically has no stroke distance. Both keys require a lot of force – the user might be better served by an external mouse.
The third input device is the capacitive touchscreen, which can recognize and work with up to 10 fingers simultaneously. In previous reviews, we have expressed our feelings on using a Windows notebook with finger input. We believe that it is best for the potential buyer to decide for him/herself how useful a feature like a touchscreen will be. Overall, the input is well-recognized and swiftly executed. Once again, the stiff hinges are a great help as they keep any and all wobbling to a bare minimum.
The touchscreen may be a nice gimmick, but its picture quality is important. Sadly, Acer has picked a relatively cheap WXGA panel, which sports a resolution of 1366x768 pixels – barely higher than the resolution of a good Smartphone. Taking into consideration the display diagonal of 15.6 inches, the pixel density amounts to 100 dpi. This means that the GPU will have less work cut out for it, but the user will be faced with a very limited desktop, not suited for a 1,000 Euros (~$1310) Ultrabook.
The display has modest brightness. Even at maximum, we measure a mere 203 cd/m², which was evenly distributed over the panel. The TimelineU is suitable for indoor use, but higher brightness levels would have been good - especially for outdoor use.
The manufacturer has cut corners with the panel: instead of a high-quality IPS screen, Acer chooses a TN panel from AUO (B156XTN03). The contrast of 495:1 and black value of 0.42 cd/m² are quite good for this type of display, but they cannot hope to compete with high-class panels on the market. In comparison, the HP Spectre XT TouchSmart 15 (1,400 Euros/~$1834, Full HD, IPS) offers a contrast of more than 800:1.
The Acer Ultrabook is primarily aimed at private users, which makes color spectrum coverage less interesting. The display has strong deviations (Delta E 13.8) and a clear blue tinge. In addition, the relatively small color space cannot cover the sRGB or AdobeRGB spectrums. Most users will not notice any of this as the TimelineU is suitable for easy tasks, like editing holiday pictures.
Haswell, the Ivy Bridge successor, is due for launch in a few months, which means it is time for Intel to do some spring cleaning and launch a handful of new models, which are often dubbed "speed bumps". This includes the Core i5-3337U of our test model, which replaces the older i5-3317U. The difference is a mere 100 MHz higher base and Turbo clock speed, which expands the speed range to 1.8 - 2.7 GHz. No additional features, like the support of Hyperthreading or the 3 MB L3 cache, have been touched. The TDP is still similar to that of an ULV CPU: 17 Watts.
The graphics processors of the laptop include the HD Graphics 4000 IGP (350 - 1,100 MHz) and a dedicated GeForce GT 730M GPU. Depending on the application, Nvidia Optimus will use the optimal GPU: simple 2D programs will be run with the conservative Intel IGP, whereas the more demanding 3D games are executed with the GT 730M. The switch between the two is fluid and, most of the time, automatic.
Acer offers two configurations for the M3-581PTG. The entry-level configuration costs 800 Euros (~$1048) and employs a classic 500 GB HDD, whereas the configuration of our test model costs roughly 200 Euros (~$262) more and includes a 256 GB SSD and 4 GB DDR3 1333 RAM, of which 2 GB are soldered onto the motherboard.
As the increase in clock speed is minor, the Core i5-3337U cannot beat its predecessor, the i5-3317U, by a large margin. In Cinebench R11.5, we measure a score of 2.49 points - roughly 4% higher. The differences are just as small in the Cinebench R10 (64-bit) benchmark: the TimelineU scores 4,651 and 9,546 points (Single/Multi). Still, the dual-core processor is not to be underestimated: even the 35 W middle-class i5-3210M is only 15 to 20 percent faster. The AMD top model, the A10-4600M, falls far behind our test model. With the exception of a few demanding programs (for example, HD video editing or rendering), the Core i5-3337U is suitable for all modern applications.
Although the TimelineU includes a free 2.5-inch slot, the manufacturer has installed a compact mSATA SSD from Toshiba. The model is the THNSNS256GMCP, which is not sold in shops and probably uses the Sandforce controller. This should be the SF-2281 controller with a 24 nanometer NAND (also from Toshiba). However, as many notebook manufacturers use different sellers, this information can be inaccurate.
In any case, the SSD boosts performance: sequential read speeds of 512 MB/s and write speeds of 359 MB/s (AS SSD). This places the drive at the very top of the market and it even beats the popular Samsung PM830. While dealing with small 4K files, there is no clear champion, but the Toshiba SSD shows its strength in writing (4K-64: 269 MB/s).
Thanks to the fast SSD and powerful Core i5 CPU, the Ultrabook shines in PCMark 7. The 4,791 points it scores, places it at the level of competitors like the Acer Aspire S7 (4,824 points), HP TouchSmart 15 (4,414 points) or Lenovo IdeaPad Yoga 13 (4,396 points). This should come as no surprise as the CPUs and storage devices of these different models, which are the deciding factors of the PCMark score, are very similar.
In everyday use, the TimelineU M3 benefits greatly from its fast flash memory. It has short load times and a quick response time. Windows 8 boots in less than 12 seconds and is practically instantaneously ready.
The Nvidia GeForce GT 730M, which was introduced at the beginning of the year, is known to us from the Acer Aspire V3-571G. Although the name suggests a new generation, the GPU actually uses the well-known GK107 Kepler chip – which can also be found in the GeForce GT 640M or 650M. The 28 nanometer GPU has a clock speed of 725 MHz and 384 shaders. This is only slightly higher than the GT 645M, but with Turbo Boost, the speed hikes up to 895 MHz. As a result, the 730M is barely slower than the DDR3 version of GT 650M (950 MHz Turbo). This GPU has 1 GB memory (900 MHz, 128-bit DDR3). The standard practice is to provide 2 GB VRAM, but this would not make much of a difference in this performance class.
The result is good: an impressive 2,135 points in 3DMark 11 make the TimelineU M3 one of the fastest Ultrabooks available. The scores from 3DMark 2013 (Fire Strike: 1,168 points) promise great gaming suitability.
In fact, all the games we tested ran fluidly at the native resolution of 1366x768 pixels. There were differences in what detail settings we had to use: while the relatively less-demanding Diablo 3 or Dishonored could be run with max settings and active AA at frame rates above 60 fps, games like Battlefield 3 had to be run at medium settings. A heavier drop in the graphics settings was necessary only for a handful of very demanding games, like the recently released Crysis 3, which did not run perfectly at medium settings. This confirms our previous assertion: the GT 730M is just shy of the GT 650M in terms of power.
While idle, the fan of the Ultrabook runs constantly and emits between 31.7 and 31.9 dB (A). This level of noise emission is not distracting, but it is noticeable in quiet surroundings. The emissions rise a little more while surfing (occasionally turning up to 34.8 dB (A)) or playing a DVD (36 dB (A)). Thanks to the SSD, the annoying access noises of a traditional HDD are not present.
At load, the powerful graphics card forces the fan emissions higher: 41.2 to 41.4 dB (A). If we take into consideration the power of the hardware, we believe this to be an acceptable level of emission. In fact, it is not much louder than other Ultrabooks that lack a dedicated GPU. In comparison, the HP Spectre XT TouchSmart 15 emits 35.2 to 44.2 dB (A).
Without load, the surface temperatures barely reach the 30 degree (86 degrees Fahrenheit) mark, which indicates great energy management in the TimelineU. This does not change when performing normal, everyday tasks and the user can keep the notebook on his/her lap.
The situation at full load is less appealing, especially near the back right side, where the ventilation opening is placed - here the temperatures can rise up to 57 °C (134.6 °F). The hand-rest regions and the "WASD" area (which holds interest for gamers) remain relatively cool - this is useful in summer.
Like many of its competitors, this Acer model suffers from throttling. In our stress test, the CPU temperature reached up to 95 °C (203 °F), which brought about a drop in the clock speed to 1.3 GHz. After the cores had cooled down, the speed shot back up to 2.5 GHz and the circle repeated itself. However, it is important to note that such a full load situation was simulated using the synthetic benchmarks Prime95 and FurMark. In real applications and games, no throttling is present. The graphics chip constantly runs at its max clock speed of 895 MHz and heats up to a max of 81 °C (177.8 °F).
The front of the notebook houses two stereo speakers, which have a significant maximum volume. Music and movies sound clear (above average) and the speakers only lack bass. The various equalizer settings do little to change that, but we like the "Music" preset best.
External speakers can be connected digitally via HDMI or using the classic headphone jack. The latter offers good signal quality but not enough for high-impedance entertainment headphones.
Thanks to Optimus, the TimelineU consumes 6.0 - 7.7 W while idle. This is very similar to other Ultrabooks.
This changes once the GeForce GT 730M kicks in. The consumption of 56.5 W in 3DMark 06 and up to 67.4 W in the stress test (fluctuates) exceeds that of the competition (at least those which lack a dedicated GPU) by 25 to 30 Watts – precisely the consumption of the GPU. The 65 W power adapter is only barely capable of supplying the necessary juice to the laptop.
The integrated Lithium-Polymer battery has a capacity of 54 Wh and, according to Acer, delivers up to 8 hours run time. This is not an exaggeration: although the Battery Eater Reader's Test (minimum brightness, "Power Saver" profile, WLAN off) could not be forced to use the conservative Intel IGP, the laptop lasted a good 7 hours and 35 minutes.
When we adjusted the brightness (around 150 cd/m²) and surfed online with the WLAN, we found the run time to be 6 hours and 17 minutes. In this practical test, the M3 exceeds many other Ultrabooks, which can only offer 4 to 5 hours.
Although Acer does not limit the CPU or GPU on battery, the test model lasts an impressive 2 hours and 16 minutes in the Battery Eater Classic test (max brightness, "High Performance" mode, WLAN on, running on battery). Demanding 3D games will drain the battery much faster.
Multi-faceted but with weaknesses - this would be an appropriate description of the Acer Aspire TimelineU M3-581PTG. Thanks to the powerful Nvidia GPU, the Ultrabook can run the newest games without problems. The Core i5 CPU and the fast SSD do their part in giving the system good performance. The resulting power consumption and noise and temperature emissions cannot be avoided.
However, the real weakness of the laptop is a different area. The glossy display makes it hard to use the laptop outdoors. The touch feature raises the question: is it really necessary? The user might have been better served by a high-quality IPS panel. Still, this is a matter each potential buyer has to decide for him/herself.
Other small flaws are also noticeable. We expect more from a 1,000 Euro (~$1310) Ultrabook. These flaws include a spongy and poorly installed touchpad and workmanship errors on the display cover. Let us hope that this is an isolated case, as our test model does originate from a reseller. If you are looking for a long-lasting Ultrabook with a touchscreen, optical drive and a fast graphics card, our test model is a prime option.
Tag: laptop battery ,charger,adapter,replacement battery for laptop
|Thursday, May 9th, 2013|
Review Acer Aspire V3-571G-53214G50Maii Notebook and battery life
Whoever is looking for an affordable 15.6-incher (below 800 Euros (~$1044)) with Full HD resolution will come across numerous devices from Dell, MSI, Asus, and a few from Sony, Lenovo, and Medion. The list shrinks dramatically if you ignore laptops without dedicated graphics or with relatively weak solutions (e.g. Dell's Vostro 3560, i7, HD 7670M or Asus' N56VJ-S4045H, i5, GT 635M). The Acer Aspire V3-571G-53214G50Maii comes with a matte Full HD display and powerful gaming hardware (Kepler).
Our test sample is equipped with a GeForce GT 640M. Its successor the GT 730M is already available too (V3-571G-53238G1TMaii, 799 Euros (~$1043)). Apparently, sales of the GT 640M has begun and our test model currently costs about 630-650 Euros (~$822-848) and is at least 100 Euros (~$131) cheaper than the mentioned competition. Should you buy, before it is sold out?
In this test we scrutinize the new Full HD display. The following tests of performance, gaming performance, and ergonomics are obligatory. Of course, we also check the battery life. We already reviewed the V3-571G (HD panel) in August 2012. Therefore, we skip the sections about case, connectivity, and input device. If you want to know more about these, please refer to our review of the Aspire V3-571G-73614G50Makk (TN HD Panel 1366x768).
It is not easy to select comparable contenders with FHD displays. We reviewed all of the laptops listed below, but not the FHD model of each. Therefore, we compare our test sample to Dell's Inspiron 15R SE (matte FHD) and Lenovo's IdeaPad Y500 (glossy FHD).
Instead of 1366x768 pixels our Aspire V3 comes with a resolution of 1920x1080 pixels. It features a high-end IPS panel (in-plane switching), which usually feature significantly wider viewing angles than the TN-types (Twisted Nematics) typically used by Acer in this price category. Apparently, Acer departs from the strategy to equip all notebooks (except the top model S7-391) with the same poor TN panels. In the past, we often came across otherwise totally convincing laptops, which were ruled out because of their poor displays, e.g. the Timeline Ultra M3-581TG or the Aspire S5-391. The latter currently costs 1,500 Euros (~$1957)!
All the more surprising our test model is currently available for 650 Euros (~$848) in online shops. The Full HD display stems from the LG Display (LP156WF4 SPB1). To date, Acer nearly always used AUO and sometimes LG Phillips displays. The chance paid off: The matte display is not only above-average brightness (278 cd/m²), but also features a very high contrast of 1,043:1. The latter is nearly on par with the high-end panel (S-IPS+) in Asus' VivoTab TF810C Convertible (1229:1). The V3-571G's predecessor just achieved 132:1 and a moderate brightness of 198 cd/m² (LG Phillips LP156WH4-TLA1). The competition, Lenovo's IdeaPad Y500 (459:1 LG Philips LP156WF1-TLC1) and the Inspiron 15R SE (AU Optronics B156HW2, 533:1) do not perform better than our test device in this aspect.
The brightness distribution of 82% seems to be uneven, but brighter areas cannot be detected on a black background. The colors look crisp and fresh and black appears deep.
Does the color space of the FHD panel also suffice professional graphic tasks? While the display significantly misses sRGB, it offers exceptionally high color fidelity in magenta (pink). An analysis is available below (CalMAN figures). The predecessor model with HD panel has a nearly identical color space (figure 4). The FHD display of the Lenovo IdeaPad Y500 performs better in terms of sRGB coverage, while the Inspiron 15R SE with its AU Optronics B156HW2 is about on par with our test model. Therefore, the Aspire V3 is not appropriate for professional graphic designers, who require high color fidelity.
Nevertheless, the high resolution, the matte surface and the high contrast allow comfortable work with all office programs and in CAD environments. Games should be mentioned here, too. It is fun to run these on a display with crisp colors. In "Gaming performance", we will clarify if the GT 640M is actually able to run current titles in Full HD resolution.
The following figures depict the color analysis from the i1 Pro 2 photo spectrometer. In factory state, we detect weaknesses in gray levels, which do not improve after calibration. The average DeltaE (2000) remains at 8. It is striking that white is with 6,562 K close to the ideal of 6,500 K. Most notebook displays look too cool, e.g. Toshiba's R930 with 9,097 K. The IPS display of Asus' UX31A (non-touch screen) tends to the opposite extreme with 5,500 K. In addition, colors are not bluish and look warm on the V3's FHD panel.
The color precision is rather good for a notebook, but far from perfect. After calibration, green, blue and magenta exceed a DeltaE of 5, the level a trained human eye can detect wrong color representations. The displays of the LifeBook T902 Convertible (touchscreen) and the Asus VivoBook TF810C perform better in this aspect.
Thanks to high brightness and matte display there are nearly no limitations to outdoor use. Even direct light (from the front) does not spoil the stable image (from the side!). The image only gets unrecognizable when viewed from very oblique positions. The brightnesses of our test model, Dell's Inspiron 15R SE (278) and Lenovo's IdeaPad Y500 (259) are decent. But, the glossy-type display of the Lenovo has a negative impact.
We appreciate the viewing angles of the display. They are about 85 degrees in the horizontal and vertical direction. This is usual for IPS panels. Typical TN panels (e.g. Aspire S5-391) do not exceed 45 degrees in horizontal and 15 degrees in the vertical direction.
Its FHD competitors, the Y500 and the Inspiron 15R SE, are outperformed by our test model. Although their viewing angles are not poor in general (very stable in the horizontal direction), you will observe ghosting sooner than on our Aspire V3-571G's IPS display in the vertical direction. The quality of Full HD displays can definitely be quite different. Our V3 test model is ideal for several persons watching a film.
Currently, four different Aspire V3-571G models are available: with Core i5-3210M (2x 2.50 GHz) dual-core CPU (test model), with i7-3630QM (4x 2.40 GHz) or with i7-3632QM (4x 2.20 GHz). The 550 Euros (~$718) V3-571G-53214G50Makk is equipped with the i5-3210M, but only features a GeForce GT 630M and an HD display. We think that a surcharge of 100 Euros (~$131) is fair for an FHD panel and a significantly faster GT 640M. The first Aspire V3 (HD, GT 640M) was equipped with Intel's Core i7-3610QM (4x 2.3 GHz). Our test model is also already available with the new GT 730M for 799 Euros (~$1043).
The Ivy Bridge CPU can clock with up to 3.1 GHz (@single-core load) in theory if the cooling system is efficient. Our V3 uses a Hitachi Travelstar Z5K500 (HTS545050A7E380) with a gross capacity of 500 GB. The 5400 rpm HDD belongs in the slowest hard drive category. More information is available in the following analysis.
The GeForce GT 640M with DDR3 memory (2,048 MB) is a mid-range GPU of the Kepler architecture from 2012. Optimus allows switching between Intel HD Graphics 4000 and GeForce. More precisely the HD 4000 always remains active, while the GeForce is additionally turned on if more performance is needed as the latter uses the image buffer of the Intel HD for output. Therefore, the display does not flicker or turn black when the graphics card is switched and switching is transparent to the user.
Would it be worthwhile to select one of the bigger quad-cores? We compare the i5-3210M (2.5 - 3.1 GHz) to test models equipped with the i7-3630QM. However, we did not have the 3632QM in review yet. Furthermore, we mention competitors of comparable type and price, which are at least optionally available with an FHD display.
Our 3210M is about 110 to 117% slower (2.86 points) than a 3610QM quad-core (MSI GE 60 and Akoya P6815) in the Cinebench R11.5 multi test. The 3630QM is hardly faster than the latter with +119%. This is not surprising as the nominal clock is only 100 MHz higher. As the IdeaPad Y580's results prove our 3210M reaches the typical performance level of this i5 processor.
Cooling works decently. During the Cinebench multi tests, the test model constantly clocks at 2.9 GHz. The same is true in single-core tests: No signs of thermal throttling.
The performance on battery equals the one on mains. Each of the three CB-R11.5 tests (Solo/Multi/OpenGL) delivers the same result. As for the GPU, the GT 640M must be selected in the Nvidia driver for battery mode. Otherwise, only the HD 4000 runs the OpenGL test. The following figure depicts different scores depending on the GPU. The GT 630M (dv7-7202eg) and HD 7730M (Inspiron 15R SE) are significantly slower than the GT 640M. More details are available in graphics performance.
The PCMark 7 rates all components and calculates a total (2,516 points). Alike the Windows performance index (5.9) the Futuremark test reveals that the HDD is a bottleneck. 1,316 points in the system storage sub score are easily exceeded by every SSD system (at least 4,000 points). By the way, the Windows 8 index does not take Nvidia's Optimus into account and displays the lower scores of the Intel HD 4000.
The low performance differences between the compared devices, which are all equipped with HDDs, is surprising. Even a quad-core does not increase the total score of PCMark 7. A GT 650M also does not, although it is about 16-22% faster than the GT 640M according to the OpenGL test mentioned above.
The Hitachi Travelstar does a rather good job for a slow 5400 rpm HDD. Average read transfers of 80-102 MB/s are rather decent for this type of hardware. Acer does not offer an SSD model of the V3-571G. However, there is a model with a 1,000 GB hard drive. Slow access in 4K tests (fragmented, small files) is typical for HDDs. While these achieve about 0.31 MB/s, an SSD can reach up to 10 to 20 MB/s.
The GT 640M is a mid-range GPU based on the GK107 chip of the Kepler series (28 nm). With GDDR5 memory, the GPU would be nearly as fast as a GT 650M (former Fermi architecture). However, Acer equipped the system with 2 GB DDR3 video memory. The 3DMark 2006 ends with 10,001 points, a typical score for a GT 640M. The GT 730M performs better in this test. In 3DMark 11 it is +3% faster, which might be due to normal measurement inaccuracies, however. A detailed test of the GT 730M is available in our update review of the V3-571G-53238G1TMaii.
A detailed overview about the decent gaming performance of the GT 640M is available in its data sheet. It can at least smoothly run most titles in medium details. Native Full HD resolution is only possible in non-demanding games like Dishonored, FIFA 13, Torchlight 2, or Diablo. Most other games can at best be enjoyed in HD resolution (1366x768 pixels). In our opinion, the surcharge for the GT 730M model of the Aspire V3 is not worthwhile as it just achieves equal or marginally better frame rates.
The temperatures increase a lot under constant load. This is especially true for the stress test (processor and graphics card) and not that much for games. We measure 55 degrees Celsius (131 Fahrenheit) on the underside close to the fan. On the upper side, the central area of the keyboard reaches 46 degrees Celsius (114.8 Fahrenheit). Important: the stress test is not a reference for usual operation. While watching YouTube videos or writing emails, you will only experience lukewarm temperatures of about 30 degrees Celsius (see idle: ~30.6 degrees) (86 and 87.08 Fahrenheit respectively).
Thermal Throttling? No, thanks.
During our stress test of several hours (Prime95 + FurMark, see screen shot 1), the system did not throttle (clock: 2.9 GHz). The Turbo even remained active under full load and the clock rate was always significantly higher than the base clock of 2.5 GHz. The constant energy consumption of 81 Watts (only Prime95: 46 W, only FurMark: 62 W) is another evidence that the notebook does not throttle.
The automatic graphics switch Nvidia Optimus and the Ivy Bridge CPU in 22 nm, which should ensure low power consumption, at least while idle. Indeed, idle and load values are very different. This was already typical for the Intel Core predecessor generation, Sandy Bridge. In comparison to the predecessor (V3-571G-53238G1TMaii) the relatively high idle medium and maximum energy consumptions are striking. The predecessor needed, even with Ivy Bridge quad-core, only 13-14 Watts.
Most likely, this is caused by the nearly 100 cd/m² brighter Full HD display. Other 15.6-inch laptops with i5, FHD panel and powerful dedicated graphics card require about the same energy: MSI's GE60 (17 Watts, FHD), Medion's Akoya P6815 (17 Watts, HD) and HP's Envy dv7-7202eg (18 Watts, FHD) are on par with their quad-cores.
Under load, the dedicated graphics card and the Turbo demand a lot of power. We measure a maximum of 81 Watts in the stress test. On average, it is slightly lower during games or 3DMark 2006: 70.5 Watts. That's not much. Competitors with GT 650M and quad-core easily reach 110 Watts (Akoya P6815) or 106 Watts (MSI GE60).
The battery life is shorter than the HD predecessor's is. Capacity and battery model are not the reason as the same 48 Wh (Lithium-Ion) battery is used. Nevertheless, the idle runtime (Reader's test) fell from 7:27 to 3:46 hours. We minimize the brightness and disable the Wi-Fi modules for this test.
In the WLAN test the system performs better: However, 2:49 hours are as unimpressive as the 3:16 hours of the predecessor. We set the brightness to 150 cd/m² for this test and a looping browser script loads web pages.
The playback of a DVD film at maximum brightness ends after 1:39 hours on our test device (predecessor 2:58 h). This is easily explained. By default, we run this test at maximum brightness. Because of its bright FHD panel (278 cd/m²) the energy consumption is several Watts higher than our HD comparison device's (198 cd/m²).
Under load, the battery runtimes are close together for the first time: The Battery Eater Classic test records 1:22 versus 1:30 hours. Overall, our Aspire V3 is about on par with most of its competitors, which also achieve about three hours in our WLAN test (MSI GE60, Akoya P6815, Envy dv7-7202eg).
A Core i5-3210M, a GeForce GT 640M and a Full HD non-glare panel in a 15.6-inch laptop sounds like an interesting bundle and indeed it is. With the Aspire V3-571G-53214G50Maii, Acer packs a non-glare Full HD IPS panel into a mid-range laptop for the first time. Considering the price, we would even say lower mid-range. We expect the laptop to be rapidly sold out, as the current price of only 650 Euros (~$848 but increasing!) is more than attractive.
The WUXGA panel (1920x1080) is really appealing: Every user will appreciate its extremely high contrast, wide viewing angles and decent brightness. This will even make you forget about the not ideal battery runtime of about three hours (WLAN test).
Of course, the GeForce GT 730M in the identical V3-571G models drives down the price. However, the surcharge is not worth it, as the performance gain is too low for gamers. A test of the Aspire V3-571G-53238G1TMaii model with the GT 730M and Core i5 will follow shortly.
|Compaq Presario CQ71 Charger
Review Acer Aspire E1-571G Notebook
A frequent question asked when buying a laptop for around 500 Euros (~$651) is whether an Intel or AMD processor should be installed. In this price range, only few manufacturers offer strong processor from Intel's Core i-range and they are partly energy-efficient ULV processors that only provide limited power.Acer BATCL32 Charger Intel's Core i3-3110M from the latest Ivy Bridge generation lets Acer's Aspire E1-571G virtually stand out among the affordable entry-level laptops as a unique selling point. It also includes an Nvidia GeForce GT 620M that should have enough power to render up-to-date games in low details.
However, Acer's Aspire E1 range can also be configured. Buyers who want to invest less can opt for an Intel Pentium processor alongside the integrated Intel graphics card for less than 400 Euros (~$520). Those looking for more power can opt for Intel's Core i5-3210M besides more storage capacity for roughly 600 Euros (~$781), which is also an interesting offer. We have already tested a laptop based on the same chassis dubbed Acer Aspire E1-531. BATCL32L Charger
There is enough competition among low-budget devices; even Sony has a Vaio for less than 500 Euros (~$651) in its range, although the manufacturer is specialized in stylish designer devices. Affordable devices are sooner expected from Packard Bell, but the manufacturer belongs to Acer and sends in a test device that features an Intel Core i3 from the second generation. As mentioned, Dell wants to satisfy buyers looking for long battery runtimes with the Inspiron 15R featuring energy-saving processors. Samsung's NP355V5C-S05DE costs a bit over 500 Euros (~$651) and is completely based on AMD components. Smart-savers can also find something by HP and Asus in the form of AMD-based laptops for less than 500 Euros (~$651).
Plastic, plastic, plastic - Acer does not offer more for this price. The display's glossy-black lid is comprised of plastic, just like the wrist-rest in silver-gray and the keyboard's matte rim. Acer gives the Aspire E1-571G with basic, elegant looks that should not put anyone off. Fans of flashy design details will have to look elsewhere because a rather serious contour prevails here, which is not unusual but quite appealing.
We quite like the build-quality. Apart from the keyboard that yields, the casing makes a very rigid impression. Even the single plastic parts are joined well and no uneven transitions are felt. The display's lid could be a bit stiffer but no miracles should be expected for 500 Euros (~$651).
Users who place great value on exceptional design will be better off with Samsung, which offers a pink lid as an option. Dell also offers various metal surfaces in different colors for its Inspiron 15R. Sony is very traditional in both build and design and maintains these qualities in the low-budget sector. The Aspire E1-571G remains unobtrusive.
Not every laptop from this price range sports a Gigabit Ethernet adapter such as Acer's Aspire E1-571G. However, all devices used for comparison feature Wi-Fi standard 802.11 bgn like our Acer test laptop. Our test device also scores in Wi-Fi transmission. The reception did not weaken even at a distance of 10 meters and 3 walls to the router. Acer's Aspire E1-571G does not feature Bluetooth, which is unfortunate when the user wants to link a phone with the PC or owns a Bluetooth headphone. However, HP and Asus do not include this wireless interface either.
The 64 bit version of Windows 8 is installed as the operating system. The additional program dubbed "Acer Power Button" is a practical improvement of the operating system. The laptop can be shut down, put to sleep, etc. directly from the desktop.
Besides a bit of annoying adware from eBay or LoveFilm, there is also convenient software, such as Acer Cloud which allows accessing stored data even in remote places. Smaller additions, like EverNote, Skitch and the social media hub "Social Jogger" complete the bundle.
Acer includes a 2 year bring-in warranty on the Aspire E1-571G. In case of damage, the laptop has to be sent to the manufacturer. An "International Traveler's Warranty" is also included. The laptop can be sent to a service point anywhere in the world when traveling for 12 months after purchase. Only the shipping costs within the country are due.
It is also possible to upgrade the warranty via Acer's online shop. For example, a one year warranty upgrade costs 79 Euros (~$102). This investment could be worthwhile despite the laptop's low price if the user want to be on the safe side.
Big keys, a dedicated number pad and the entire surface covered by keys - the keyboard of Acer's Aspire E1-571G looks stylish with its square keys. However, typing on the keyboard is not as compelling. The keyboard is very bendable and features a spongy typing feel. The big surface of the single keys compensate for the small gap between the keys.
Special keys, such as for volume control, are not available. These functions are accessed using FN key combinations. A highlight of the keyboard is a dedicated euro and dollar sign key above the arrow keys. They could have been omitted considering the very cramped keyboard and the fact that both signs are on the keyboard anyway.
The touchpad has been nicely integrated into the wrist-rest and is very far left. The scroll area at the right edge is clearly palpable and visible. A key below the touch-sensitive field can be pressed on the right or left and prompts the corresponding mouse click. The keys convey a firm impression when clicked, which is particularly due to the crisp pressure point. The drop of the touchpad's keys is also well-chosen, so neither too short nor too long and also makes a high-quality impression on us.
The surface provides the fingers with good gliding traits and multi-touch gestures are supported. The desktop can be zoomed in and out like on the touchscreen of a smartphone, which is very useful in Windows 8. The touchpad key is convenient to use. Left and right clicks are well-separated on the continuous bar.
For us, one of the most exciting chapters is performance. Can Acer's Aspire E1-571G stand out from the competition with its Intel Core i3-3110M and the dedicated GeForce GT 620M featuring 1 GB of memory? Smooth workflow, watching movies and the occasional game should at least be possible in low details.
An Intel Core i3-3310M is installed in Acer's Aspire E1-571G. It is based on Intel's latest Ivy Bridge architecture. Unlike the more expensive models from the Core-i range, this processor does not feature CPU Turbo. Consequently, its default clock of 2.4 GHz cannot be increased. This maximum clock was available on battery power or during longer load in our test device and the performance remained constant.
Our test device scored as expected when the synthetic Cinebench loads all processor cores. It achieved a clear performance advantage of 10 - 20% over the entry-level Pentium B980 processors in Sony's Vaio SV-E1712F1EW and HP's Pavilion g6-2200sg. AMD's A4-3305M in Asus' K53-TK is clearly defeated with 50% in multi-core operation. All contenders are quite close in single-core processor load.
Our test device also stands out from the competition in PCMark, which rates the system's overall performance. A large part of this is certainly due to the superior processor. The devices otherwise only differ marginally in performance relevant components.
Acer's Aspire E1-571G is perfectly equipped for routine use of an entry-level multimedia laptop. Movies in the screen's native resolution or via HDMI to a Full HD monitor are no problem. Routine work should also run smoothly. The system can be upgraded to 8 GB of working memory if pictures or videos are to be edited.
The hard drive in our system is dubbed Toshiba MQ01ABD050. It has a capacity of 500 GB and spins at a slow 5400 revolutions per minute. The hard drive's capacity is adequate for the price range. Only Samsung's NP355V5C sports a larger 750 GB hard drive. Asus K53TK is only available with a smaller 320 GB HDD. The access and transfer rates are on an average level. We did not record outliers in either direction. Users who want faster data access can replace the hard drive with an ultra-swift SSD after removing a few screws.
The GeForce GT 620M ranges in the lower midfield of graphics cards. Consequently, it should be able to render up-to-date games in low details. It might also be necessary to reduce the resolution. The graphics card features a 1024 MB dedicated memory and uses Nvidia's Optimus to save power. The energy-efficient, processor-integrated Intel HD Graphics 4000 takes care of low load and the GeForce automatically jumps in during demanding tasks unnoticed by the user.
The graphics card's power was not throttled even after longer load or on battery power. It maintained its full clock rate of 625 MHz. Our test device was approximately on a par with the contenders, which exclusively use AMD graphics cards, in 3DMark 06. Only Dell's Inspiron 15R scored by about 20% higher with its newer AMD Radeon HD 8730M.
Just how suitable is the Intel Core i3 processor and the lower midrange graphics card combination for gaming? Our test shows that the stronger processor gives our test system a small advantage in some games. However, the performance is largely dependent on the GeForce GT 620M. It can render many up-to-date games in medium detail settings as long as the games are not exceptionally demanding.
Stuttering may occur when the screen gets too crowded in Anno 2070 and Diablo 3 still runs smoothly even in high settings. However, the performance gets tight when too many monsters occupy the screen here as well. Thus, it is recommendable to select a lower detail level to really experience a stutter-free game. These games can usually be played in the native resolution because the screen's resolution is fairly low.
Overall, Acer's Aspire E1-571G is on the same performance level as the other entry-level laptops. The better processor can only squeeze out minor performance advantages in games. Users who want to play in higher resolutions and with more details will have to invest a few hundred Euros more and opt for a laptop featuring a Radeon HD 7730M, GeForce GT 640M or higher.
Acer's Aspire E1-571G has to be stressed to quite an extent before it becomes audible. The fan virtually whirs silently with a maximum of 32.5 dB and is sometimes completely inactive during very little load. Our test device's noise increased up to an audible 43.2 dB when it was really loaded, but it remained within a still tolerable range.
It is also pleasant that the DVD drive does not get too loud with 35.8 dB when playing a movie. Generally, the noise from the Acer Aspire E1-571G is quite within the common range for this category and will likely only disturb very noise sensitive people when loaded.
The temperatures also remain on a good level. The laptop's center only warmed up to 40.8 °C during longer load, which is only a slight warming. The fact that the wrist rest heats up in low load is not as pleasant. However, it remains within a tolerable range. Sony's Vaio SV reaches much higher temperatures despite its larger casing. All other devices stay on the level of Acer's test device.
A good sound is vital for a multimedia device. The competition partly installs brand name speakers, such as Altec Lansing (HP and Asus), but with quite varying outcomes. Acer's Aspire E1-571G manages to extract a decent maximum volume from both no-name speakers located above the keyboard. The sound is also quite balanced and good for laptop conditions, although the low ranges are virtually non-existent like in most cases. Users who like to listen to music on their laptop should prefer external speakers or a headphone. The sound output via the audio port was flawless in our test device.
Acer's Aspire E1-571G drained a maximum of 55.4 watts from the outlet and quite clearly places itself as an energy-saver before the Samsung and HP contenders, which are not as strong. It is not due to the power supply unit. The handy power adapter from LiteOn supplies 90 watts when necessary, which seems a bit oversized for our test device.
The device proved to be modest and consumed a maximum of 11.5 watts during little load. The device still consumed 0.2 watts from the outlet when it was turned off and 0.5 watts in energy-savings mode. Dell's contender proves to be the leader and only consumes 0.1 watts when turned off and 0.2 watts when idling.
The battery runtime of our test device is also on class level. The 44 Wh battery, which can be removed using a pointy object, provides a runtime of up to 8:20 hours when it is hardly loaded and all communication modules are disabled. Acer is fair and states a runtime of 4:30 hours on its website, which corresponds to a much more realistic measurement. For example, we almost achieved this exact runtime while surfing on the internet. The runtime should also be enough for watching two DVDs. Almost 2 hours of work is possible when Acer's laptop is fully loaded.
Acer's Aspire E1-571G is a solid entry-level device that does not exhibit any major weaknesses. However, it does not feature any highlights like the competition sets in one way or another. Fans of design will be better off with devices from Dell or Sony. Samsung offers more interfaces and HP's Pavilion g6-2200sg sports better speakers, which is not unimportant in a multimedia device.
Acer's test device can score with a strong Core i3 processor from the Ivy Bridge generation, which makes it 20% faster than the competition in many applications. Even games can be played well in low details alongside its noise development, power consumption and temperature, where the device stays agreeably discreet.
A better screen, more interfaces and a higher quality keyboard would have reaped in a few more points for the device. Nevertheless, the Aspire E1-571G is an alternative for everyone who wants a bit more performance from the entry-level range for their money.
|Monday, May 6th, 2013|
|Asus A2H Adapter
Review Samsung Series 3 355E7C-S05DE Notebook and battery life
The entire casing is black and Samsung completely relies on plastic. The base unit's top and the lid's back feature matte, brushed metal looks. The illusion of a metal surface is implemented very successfully. The display's frame and the keyboard's bezel are made of a glossy plastic and make fingerprints unavoidable. Packard Bell's laptop is also completely made of plastic. Toshiba uses aluminum components besides plastic in its Satellite. Hp TPN-W106 Adapter
The base unit is not the most stable. It dents when pressure is applied to the area underneath the touchpad and on the keyboard's left. Also, the base unit's front right corner lifts from the surface when the frame on the keyboard's left is pushed down. The base unit's stiffness could also be better. The same is true for the lid. Its back can be pressed to such an extent that minor picture distortions are seen. The hinges keep the lid firmly in place but rock a bit. It is not possible to open the lid with one hand. Hp TPN-W107 Adapter
With the 355E7C, Samsung has a 17-inch all-rounder in its range. Most tasks are no problem for the device. It easily copes with internet communication, office tasks and video playback. Even up-to-date 3D games are no big challenge for the laptop. The laptop is currently sold for 600 Euros to 700 Euros (~$777 to $907) and is available in other configurations. The differences are found in the installed APU, working memory capacity and hard drive size. The currently least expensive model, featuring AMD A4-4300M APU, 4 GB RAM and a 500 GB hard drive, is available for 490 Euros (~$634). Hp TPN-W108 Adapter Samsung also sells innumerable other laptops in various sizes and configurations under the name Series 3.
Samsung's laptop is powered by AMD's A8-4500M APU, which is part of the Trinity generation. The APU's CPU part is a quad-core processor that clocks with a base speed of 1.9 GHz. The clock rate can be boosted up to 2.8 GHz (AMD Turbo Core).
The CPU processes the CPU single and multi-thread tests of the Cinebench benchmarks stably at 2.3 GHz. The scores are on a par with the Satellite (AMD A8-4500M, Radeon HD 7640G + HD 7610M dual-graphics). However, neither contender can compete with the scores of Packard Bell's laptop (Core i5-3210M, GeForce GT 630M) since it sports the strongest CPU. It is the other way around in the Cinebench R11.5 GL tests. Hp TPN-W109 Adapter Both Samsung's laptop and the Satellite deliver a much better score than the Packard Bell laptop. The dual-graphics solution is stronger than the GeForce GPU at least in this synthetic benchmark.
The system runs mostly smoothly and without hitches. The odd delay was noticed when running programs. We assume that this is due to the stuffed Windows installation. Samsung preinstalls many apps and tools. The PCMark 7 score is on a par with the very identically equipped Satellite (AMD A8-4500, Radeon HD 7640G + HD7610M dual-graphics). The score of Packard Bell's laptop (Core i5-3210M, GeForce GT 630M) is higher than that of the contenders owing to the stronger CPU. 671567-831 Adapter
Samsung installs a dual-graphics solution in the 17.3-inch laptop. That means two graphics cores calculate the displayed pictures. AMD calls this technology Crossfire. The dual-graphics solution could principally be deactivated so that only the integrated GPU is used. The Crossfire array in the 355E7C consists of the integrated Radeon HD 7640G GPU and dedicated Radeon HD 7670M GPU. Both chips support DirectX 11. The HD 7670M is a member of the GPU midrange. More information about the dual-graphics solution can be found on the corresponding data sheet. Hp H2L56AA Adapter
The results of the 3DMark benchmarks are on a good level and are marginally better than the scores of the Satellite (AMD A8-4500M, Radeon HD 7640G + HD 7610M dual-graphics). Packard Bell's laptop (Core i5-3210M, GeForce GT 630M) takes the lead in the 3DMark 2006 benchmark. The CPU has a bigger impact on the score in this test and the laptop with the strongest CPU consequently is at an advantage. The GeForce GT 630M can no longer keep up with either dual-core solutions in the newer 3DMark versions.Hp H2L55AA-ABB Adapter The 3D performance of the dual-graphics solution in Samsung's laptop ranges between the GeForce GT 630M and the latest GeForce GT 730M in the synthetic 3DMark benchmarks (see comparison graph). The gaming benchmarks will reveal whether this is also true in real life.
Owing to the dual-graphics solution, the Series 3 laptop can render up-to-date computer games smoothly on the screen in HD resolution (1366x768 pixels) using medium and frequently even high quality settings. The dual-graphics solution only has problems generating adequate frame rates with very performance-hungry games like Hitman: Absolution or Crysis 3. Hp HSTNN-LB3N Adapter Games that don't have such high hardware requirements also run smoothly in the Full HD resolution and maximum quality settings, for example FIFA 13, Call of Duty: Modern Warfare or Diablo 3.
Micro-stutters occur around 30 fps on AMD's dual-graphics solutions. We noticed these again this time. Generally, the dual-graphics solution's frame rates were disappointing. They were lower than Toshiba's laptop in Diablo 3 and Anno 2070. Here it becomes obvious that Samsung's laptop tends to throttle in high temperatures. This is too bad because Samsung's laptop should theoretically supply better frame rates seeing that it has the stronger dual-graphics solution. Hp HSTNN-LB3P adapter
Samsung's laptop is not noticed adversely due to excessive noise when idling. We measured rates between 30.8 and 34.4 dB. The fan is often inactive. Packard Bell's laptop (30.6 to 31.5 dB) is quieter and the Satellite (32.4 dB) is on a par with Samsung's laptop. The 355E7C did not get very loud during medium load (3DMark 06) with 36.1 dB. The Satellite (38 dB) is louder and Packard Bell's laptop (34.3 dB) is a bit quieter. Hp HSTNN-YB3N Adapter The laptop from Packard Bell is also the quietest during full load with 36.6 dB (stress test via Prime95 and Furmark). Samsung's laptop (38.7 dB) and the Satellite (40.1 dB) generate more noise.
Samsung's Silent Mode can be activated should the laptop still be too loud. It reduces the fan's noise. This mode can be enabled in Samsung's settings menu. The start icon is located in the task bar. The fan's noise is reduced by slowing the CPU. Activated Silent Mode reduced the clock rate of all four cores to 900 MHz when Cinebench R11.5 benchmark was performed (energy profile: High Performance). Hp HSTNN-YB3P Adapter
The casing's idle temperatures ranged from 25.8 to 41.2 °C. These rates are too high for idle. This also proves that the fan is often inactive and the heat can accumulate in the casing. The very identically equipped Satellite heats up much less. Surprisingly, Samsung's laptop produced less heat during full load in the stress test (Prime95 and Furmark run simultaneously) at both the peak as well as on average. We measured temperatures between 25.6 and 40.7 °C. Both contenders are roughly on a par with Samsung's laptop during full load. Asus A2000T adapter
As already mentioned several times, the 355E7C and Satellite feature very identical equipment. Thus, the CPU and GPU exhibit very similar speeds during load. In AC mode, the CPU started the stress test with strongly fluctuating clock rates (Prime 95 and Furmark run for at least one hour). The processing speed settled to around 1.4 GHz after a short while. There were recurrent fluctuations up to 2.3 GHz and down to 900 MHz. These peaks largely ceased after about 15 minutes. Battery for Asus A2508H The dual-graphics solution ran through the stress test mostly at a speed of 497 MHz in AC mode. It was recurrently accelerated to 655 MHz for a short time. In rare cases, it was slowed to 335 MHz for just as short a time. The CPU clocked stably with 900 MHz and the dual-graphics solution with 335 MHz when the stress test was performed on battery.
We reran the 3DMark 2006 benchmark right after the stress test in AC-mode. The score dropped slightly compared with the laptop's cold state (7688 points vs. 8493 points). The CPU's temperature settled to 75 °C in AC-mode. Asus A2514H Adapter
The speakers in Samsung's laptop are located above the keyboard. They produce a low-bass sound that cannot hide a tinny quality. Speech is clear and intelligible. The sound experience can be enhanced by using external speakers or headphones.
Battery replacement Asus A2534H The idle power consumption of 11.6 to 17.1 watts is a bit high. The identically equipped Satellite (8.2 and 15.4 watts) and Packard Bell's laptop (7.6 to 14.2 watts) show better rates. During full load (simultaneous Prime95 and Furmark), Samsung's laptop is satisfied with a power consumption of 54.5 watts and places itself before the Satellite (61.1 watts) and Packard Bell's laptop (81.1 watts). However, it should be kept in mind that the CPU in the 3557C, like the Satellite's CPU, does not clock at full speed (throttling). Asus A2D Adapter
The 355E7C achieved an idle runtime of 4:22 h. The Satellite (4:03 h) and Packard Bell's laptop (3:51 h) lag slightly behind that. The idle runtime is ascertained using Battery Eater's Reader's test. The screen's brightness is set to minimum, the energy-saving mode is enabled and the wireless modules are off. Samsung's laptop finished the load test after 1:11 h and is on a par with the Satellite (1:12 h). Packard Bell's laptop lasts a bit longer with 1:41 h. We use Battery Eater's Classic test to determine the load runtime. The screen is set to maximum brightness and the high-performance profile and the wireless modules are enabled. Asus A2C Adapter
The Wi-Fi test ran for 2:35 h on the 355E7C. Both contenders (Toshiba: 3:31 h; Packard Bell: 3:06 h) last longer. Websites are automatically opened every 40 seconds in this test. The energy-savings profile is enabled and the screen's brightness is set to approximately 150 cd/m². Should the user want to use Samsung's laptop as a DVD player, it is recommendable to have the power supply at hand. Asus A2G Adapter One battery charge is enough for a playback time of 2:13 h. The Satellite (2:07 h) is on a par with the 355E7C and Packard Bell's laptop lasts a bit longer with 2:33 h. The DVD test is performed in enabled energy saving mode (or a higher profile should the DVD not run smoothly), maximum screen brightness and disabled wireless modules.
The batteries of the three laptops have an identical capacity of 48 Wh each.
Samsung sees the 355E7C as a family laptop. We can quite agree with this self-assessment. The laptop convinces with decent application performance and good equipment (high storage capacity, 8 GB of working memory). Even the gaming performance is satisfactory and enables playing most up-to-date computer games. Asus A2H Adapter It also pleases with a matte screen and good keyboard. Thus, the laptop can cover many different application fields. On the con side, we have the screen's moderate contrast and the poor battery runtimes. These points can be tolerated in a 17.3-inch multimedia laptop. Samsung offers potential for saving: Users who are satisfied with a dual-core processor, less working memory and hard drive capacity can attain the 355E7C for less than 500 Euros (~$647).
Asus A2K Adapter Although Toshiba's Satellite L875D-10E features a very similar configuration, there are differences that make it interesting. That would be the three year warranty and the higher contrast screen. Packard Bell's EasyNote LV44HC-137GE would cater to users looking for an as silent-running laptop as possible and/or a laptop with a higher contrast screen.
TAG: BATTERY FOR LAPTOP . charger ,adapter.replacement battery for laptop
|Friday, May 3rd, 2013|
|Hp 463305-362 Charger
Review Acer Aspire One 725-C7Xkk Notebook and battery life
Back in the summer of 2012, we tested the Aspire One 725. Now, a new version of the netbook is out, where the AMD C-60 APU of 2012 has been swapped for an AMD C-70 APU. On paper, there are no differences between the two APUs. Our review will show whether this also holds true during actual usage. HP ENVY Dv6-7301tx Charger
In order to evaluate the Aspire One 725, we will compare it to the Acer Aspire One 756 (Pentium 987, HD Graphics 2000) and the Asus X201E (Celeron 847, HD Graphics). All three netbooks are on an equal footing concerning price, form factor as well as typical usage scenarios.
The casing of the Aspire One 725 has not changed. Both the upper and lower side of the base unit are still made out of matte plastics, while the display lid as well as the display frame are crafted from glossy plastics. HP ENVY X2 11-G000 Charger The cases of the One 756 and the Asus netbook are based on the same material. When compared to its predecessor, even the colors of the One 725 have remained the same, as it is still available in Volcanic Black and Caribbean Blue.
The device is rather substantially built; the base unit barely sags when pressure is applied. Only at the lower border next to the touchpad can the case be forced to show some flex. The rigidity of the base unit is also quite decent for such a small case. The same holds true for the lid, although it is possible to exert so much force on the backside as to cause distortions on the screen. The display hinges hold the lid firmly in position. Thus, opening the lid with just one hand is not possible. HP ENVY Sleekbook 6-1100 Charger
The small dimensions of all three competitors make it difficult to accommodate a multitude of ports. Nevertheless, these devices come equipped with all the ports that are customary right now - the only exception being the One 756, which does not have a USB 3.0 port. Very nice: Acer has placed the ports of the 725 in the rear area of both sides.
HP ENVY Sleekbook 6-1101tx Charger The equipped AMD APU has not been designed to achieve new performance records. Its main appeal lies in a decreased energy intake. Still, the small netbook can handle word processing, Internet communication and video playback. Even videos in Full HD resolution (1920x1080 pixels, H.264 encoding) do not pose a challenge - at least not under Windows 7/8. The same holds true for YouTube videos of similar quality. Responsible for this is the Radeon GPU. It is equipped with the AMD-UVD3 video decoder, which handles most of the work during playback. HP ENVY Sleekbook 6-1102tx Charger We have tested the strain caused by rendering HD material using the tool DXVA Checker, thereby measuring a CPU load factor of 8 percent. Thus, the ability for Full HD video playback in combination with the low operating noise also permits the use of One 725 as a multimedia PC in the living room (when connected to a flatscreen TV or a projector).
HP EliteBook 8470p Charger Our test device can be bought for around 350 Euros (~$459). We have also been able to identify two more variants of the One 725. These two models are equipped with a smaller 320 GB hard drive and just 2 GB RAM, and one of them is being delivered without any operating system. These limitations allow the price to come down to approximately 300 Euros (~$393) (with Windows 8) or 250 Euros (~$328) (without any operating system).
HP EliteBook 8470w Charger The One 725 uses the AMD C-70 APU. The CPU part of the APU is a dual-core processor clocked at 1 GHz. Its speed can temporarily be boosted to 1,333 GHz (AMD Turbo Core). The entire APU has a mere 9 Watt thermal design power (TDP), so there are no technical differences at all when compared to the C-60 APU.
During the Cinebench CPU tests (single- and multithreaded), the CPU runs at 1 GHz for most of the time. Occasionally, a core will be throttled down to 500 to 800 MHz. The Aspire One 725 does not stand a chance in the Cinebench benchmarks when compared to the One 756 (Pentium 987, HD Graphics 2000) or the Asus X201E (Celeron 847, HD Graphics). The CPUs of both rivals are much more capable. HP EliteBook 8570p Charger No big surprise: When compared to the One 725, which we have already tested in 2012, both variants appear to be on equal footing, with one winning some tests and the other taking the lead in the rest. Things look better for the One 725 when the GL tests are taken into account: While the One 756 is still much faster than the One 725, the Asus netbook has to admit defeat. However, the C-70 APU still loses in a direct comparison with the AMD E1-1200 APU of the Lenovo IdeaPad S206, which ends up achieving GL and CPU test results which are 40% to 50% better than that of the One 725. HP EliteBook 8570w Charger
One should not expect the One 725 to deliver top-notch performance, something it is just not built to do. After all, the C-70 APU is AMD's counterpart to Intel's Atom processor. In everyday usage, the system runs smoothly. Sometimes the underachieving CPU can be felt - for example, when all the Windows 8 live tiles build up. Naturally, its results in the PC Mark 7 benchmark pale in comparison with the One 756 (Pentium 987, HD Graphics 2000) as well as the Asus netbook (Celeron 847, HD Graphics). HP EliteBook 2570p Charger Both computers are fitted with stronger CPUs. Astonishingly though, the benchmark results of our One 725 are even worse than those of the One 725 model which we have already tested. We think that this might be due to the CPU turbo, which is not used nearly as much in the refreshed model as it was in the 2012 version.
Data storage is managed by a Hitachi Travelstar Z5K500 hard drive, which possesses a capacity of 500 GB and rotates at 5400 rpm. CrystalDiskMark measures a read speed of 99.03 MB/s. According to HD Tune, the average data transfer rate is 86.9 MB/s. Both values are very decent for a 5400 rpm disk. HP EliteBook 2560p Charger
In the One 725, the Radeon HD 7290, which is integrated in the APU, serves as the GPU. It supports DirectX 11 and operates with a base clock of 276 MHz. When the turbo is active, this speed increases to 400 MHz (AMD Turbo Core). What we said about the CPU holds true for the GPU as well: There are no technical differences between the Radeon HD 7290 and the Radeon HD 6290 GPU that is used in the C-60 APU. HP 450 Charger
The One 725 stands no chance when tossed in a 3D benchmark fight with the One 756 (Pentium 987, HD Graphics 2000). Thanks to its more powerful GPU, the latter achieves far better results. At least, the One 725 fares better than the Asus X201E (Celeron 847, HD Graphics) in 3D Mark 2006, while remaining on par with its predecessor. Still, for a small netbook like the One 725, 3D capabilities are of secondary importance. Assisting the CPU with duties like video playback is more crucial and indeed, with regard to these requirements, the GPU fares much better. HP 455 Charger
There is not much to say about gaming performance. The AMD APU is not powerful enough to smoothly render modern 3D games, but it was never designed for running computer games anyway. Both rivals deliver slightly better frame rates, but they as well are not suited for gaming. HP ProBook 6360t Mobile Thin Client Charger
Heat generation is no issue for the One 725. When the netbook is idle, the temperature lies between 24.7 and 34.5 °C (76.46 and 94.1 °F). We measure 24.8 to 38.6 °C (76.64 to 101.48 °F) under full load - thus any part of the device may come in contact with the user's thighs without posing any inconvenience. Both competitors get much warmer, especially under full load. Hp 463304-762 Charger
During the stress test (meaning that Prime95 and FurMark are both active for at least one hour), the CPU and GPU clock with 1 GHz and 276 MHz - turbo mode is not used no matter whether the netbook is plugged into a power outlet or works on battery. In the former case, the CPU temperature levels off at 93 °C (199.4 °F).
The speakers are located on the underside of the One 725. They create a faint and pale sound. Speech is clearly understandable, but a better sound experience beyond that can only be achieved by using external loudspeakers or headphones. Hp 463305-341 Charger
The One 725 exhibits very economical behavior while idle, using just 6.2 to 9.7 Watts. The One 756 (7.7 to 10.3 Watts) and the Asus X201E (8.5 to 11.6 Watts) show a little bit more thirst for energy. Even when working under medium load (3D Mark 2006 is running) or full load (Prime95 and FurMark are active), the One 725 requires only 17.3 and 20.9 Watts, respectively, and thus less than its rivals (Asus: 20.2 / 21.7 Watts; One 756: 29.6 / 32.5 Watts). Hp 463305-361 Charger
The One 725 manages to squeeze 6:39 h out of a single battery charge while idle, which is more than both the Asus netbook (5:12 h) and the One 756 (5:55 h). Here, battery life is measured by the Battery Eater Reader's Test, where the display operates with minimal brightness, the power conservation profile is active and Wi-Fi deactivated. But also under full load, the Aspire One 725 performs better than the competition (Asus: 1:49 h, One 756: 1:53 h), operating for 2:02 h before its battery dies. For this scenario, the Battery Eater Classic Test has been used, which sets the display brightness to full, activates the high performance profile and Wi-Fi is active. Hp 463305-362 Charger
The Wi-Fi test, where a new website loads every 40 seconds, the energy conservation profile is active and the display brightness is set to 150 cd/m², more closely approximates real-life usage. And again, both competitors lose against the 4:01 h the One 725 squeezes out of its battery (One 756: 3:22 h, Asus: 3:11 h).
The battery life of all three computers is easy to compare since they have almost the same battery capacity (Asus: 38 Wh, Acer: 37 Wh). Hp 463305-751 Charger
The Acer Aspire One 725-C7Xkk is a small, portable writing machine, which also allows the user to surf the web and enjoy HD video playback. Among its major advantages are its quietness - even under full load - and lower levels of heat generation. We also like the matte display. System performance is bad, but sufficient for all the applications for which the One 725 has been built (Internet, office duties, video playback). Hp 468815-001 Charger A display with higher contrasts would have been desirable. Still, the One 725 is an interesting option, especially for potential buyers on a tight budget: If one does not mind the smaller 320 GB hard drive, 2 GB memory and the lack of any operating system, the Acer Aspire One can be had for as little as 250 Euros (~$328).
The netbook's performance is the same as for the Aspire One 725 model which we have already tested (which had an AMD C-60 APU, a glossy display, and a different hard drive). Thus, the only differences lie in their features; performance-wise both netbooks are a match. If more raw power is required, both the Aspire One 756 and the Asus X201K might be viable options.
laptop battery , charger , adapter , replacement battery , battery for laptop . HP battery
|Friday, April 26th, 2013|
|ASUS Eee PC 1015PDX Charger
Review HP Compaq Presario CQ58-350SG Notebook and battery life
The CQ58-350sg uses the same case as the CQ58-148sg. For this case HP uses black plastic. The backside of the screen as well as the palm rest have a shiny surface. The rest of the surface is in matte black. The shiny surface is especially susceptible to fingerprints. The cases of the Samsung and Aspire computers are also completely made of plastic. ASUS Eee PC 1025CE Charger
The base-unit only gives in slightly under pressure. However, around the touchpad it can be bent. For a laptop of this price segment, the torsional rigidity is also more than acceptable. While the base-unit is solid, it is a different matter with the lid. It can be noticeably twisted. Especially in the middle it can be pushed in to a point where image alterations can be observed. The hinges keep the lid tightly in its position. It is not possible to open the lid with only one hand. ASUS Eee PC 1015 Charger
The AMD APU used in the CQ58-350sg is not designed for high performance, but for low energy consumption. However, the processor can handle daily tasks like internet communication, editing, internet browsing and playing videos. Even Full HD videos (1920x1,080 pixels, H.264-coding) can be watched. The integrated decoder (UVD3) carries out the main part of playback. We have tested playback with the DXVA Checker tool and established a CPU usage of 10%. ASUS Eee PC 1015B Charger
The CQ58-350sg is currently available for about 340 to 400 Euros (~$443 to $521). HP sells countless more models inside the CQ58-series – with Intel as well as AMD technology.
Inside the CQ58-350sg is an AMD E1-1200 APU. The CPU part of the APU consists of a dual-core processor which runs at a speed of 1.4 GHz. There is no turbo available.
The results of the Cinebench benchmarks hold no surprises: The CPU runs through all tests at 1.4 GHz, which causes the results to fall into the expected area. The CQ58-350sg scores lower in the CPU tests than the Samsung laptop (AMD E2-1800, Radeon HD 7470M) and the Aspire (Pentium B960, HD Graphics). This is due to the fact that the HP notebook is fitted with the weakest CPU. In the GL tests, the HP notebook again cannot keep up with its competitors. The only time it can keep up with the Aspire is in the GL test of Cinebench R11.5. Owing to its dedicated GPU the 355E5C always leaves both competitors far behind. ASUS Eee PC 1015BX Charger
Basically, the system runs smoothly. It only starts to struggle when the built in APU is overtaxed. This happens, for example, when too many browser windows are simultaneously open. You always have to keep in mind that the advantage of the AMD APU is low energy consumption and it is not classed as a powerful processor. The result of the PC Mark 7 Benchmark lies where we expected to find to after numerous tests of this specific APU. Once again, it is no surprise to find the 355E5C (AMD E2-1800, Radeon HD 7470M) and the Aspire (Pentium B960, HD Graphics) ahead of the HP computer. Both laptops are equipped with more potent hardware. ASUS Eee PC 1015C Charger
Those looking for a gaming notebook should avoid the CQ58-350sg. The integrated AMD APU is not suitable for playing current 3D games. The games do not even run smoothly with a low resolution and on low quality settings. Even a game like FIFA 13, which has very low hardware demands, cannot be played. Unfortunately, fitting a second memory module would not increase the frame rate, because the memory control of the notebook only supports single-channel mode.
Those looking for a low-priced and gaming-grade 15.6-inch notebook should have a closer look at the Acer Aspire E1-571G (Core i3-3110M, GeForce GT 620M) or the HP Pavilion g6-2200sg (Pentium B980, Radeon HD 7670M). ASUS Eee PC 1015CX Charger
The WLAN-module of the HP laptop is from Ralink and supports the WLAN-standards 802.11 b/g/n. The WLAN reception varies tremendously. Even within a close distance (about 3 meters) of the router, the Windows WLAN display swings between two and five bars – depending on how the notebook is positioned. The reason is found inside the laptop: HP uses only one WLAN antenna for its cost-effective notebooks – and this is also the same for the CQ58-350sg. At least two antennas should be used as standard. HP also fails to shine in the area of cable-supported networks, because only one Fast-Ethernet chip was fitted into the CQ58-350sg. A Gigabit-Ethernet chip ought to be included by today's standards. The webcam delivers slightly washed-out pictures up to a resolution of 320x240 pixels. ASUS Eee PC 1015P Charger
Accessories are limited: Beside a quick-start poster, you will find a list of worldwide telephone numbers for HP support and a short manual for Windows 8.
Operating System and Recovery
HP delivers the CQ58-350sg with a preinstalled version of Windows 8 (64 Bit). A Windows DVD is not included. You can make a set of recovery DVDs with the HP Recovery Manager. Alternatively, HP offers the possibility to buy the corresponding DVD. The recovery DVD contains the operating system and also all drivers and preinstalled software. The price is currently about 38 Euros (~$49). The recovery medium can be ordered here. You need the product number of the notebook to order (which is stated on the packaging). ASUS Eee PC 1015PD Charger
In case of a defect, the operating system can be repaired with the help of the Windows 8 recovery system. To start it, you need to press the F11 key right after turning the notebook on. Besides repairing it, you can also set it back to factory settings or reinstall completely. ASUS Eee PC 1015PDG Charger
There is no support from HP if the preinstalled Windows 8 is replaced with Windows 7. HP only offers drivers for Windows 8. Many of the Windows 8 drivers should also operate under Windows 7. Only trial-and-error can show which drivers will work and which won't. Do not forget: Before deleting Windows 8, make a set of recovery DVDs.
The memory, hard drive, WLAN-module and BIOS battery are behind two maintenance covers. There is no access to the fans. ASUS Eee PC 1015PDT Charger
The CQ59-350sg is equipped with two memory slots. One slot is occupied by a 4 GB module. The memory can be extended up to 8 GB (manufacturer's information). Even with a second module, the memory does not operate in dual-channel mode, because the memory controller does not support it in this mode. It's easy to replace the hard drive. Only the fixing screws need to be loosened and the hard drive can be taken out. We had a 7mm hard drive in our test device. However, you can also use the common 9.5 mm hard drives. The frame of the hard drive can be attached to both types. ASUS Eee PC 1015PDX Charger
Buyers of the CQ58-350sg have to be content with a 12 month bring-in guarantee. If a repair is required the owner sends the notebook to HP. Buyers of the Samsung or the Aspire laptop are better off. Both devices are equipped with a 24 month guarantee. The guarantee of the HP computer can be extended up to two or three years – including pick-up service. Extensions cost 60 to 100 Euros respectively (~$78 to $130). On HP's website all guarantee extensions are listed and can be bought in conjunction with the product number. ASUS Eee PC 1015PE Charger
Since the HP computer only employs an economical AMD APU, the power consumption is rather low. During idle, we ascertain between 7.7 and 12.4 Watt. The power consumption of the Samsung notebook (9.7 to 15.3 Watt) turns out to be slightly higher, while the Aspire (6.9 to 12.8 Watt) roughly draws level with the CQ59-350sg. During medium load (3D Mark 2006 running) or full load (Prime95 and Furmark running), the HP notebook appears to be the most economical with 23.1 to 29.4 Watt. The Aspire (32.6 to 51.6 Watt) as well as the 355E5C (35.2 to 43.9 Watt) are less economical. ASUS Eee PC 1015PEB Charger
During idle, the CQ58-350sg achieves a runtime of 8:33 h. The 355E5C (6:07 h) and the Aspire (6:10 h) lie far behind. The runtime during idle is determined by the Battery Eater Reader's Test. The screen is running with minimum brightness, the energy saving profile is activated and all radio modules are turned off. Under full load, the battery does not quit until 2:15 h. This places the HP laptop behind the Samsung notebook (2:47 h) but far in front of the Aspire (1:13 h). We use the Battery Eater Classic Test to ascertain the runtime under full load. The screen is running with maximum brightness, high-performance profile and radio modules are activated. ASUS Eee PC 1015PED Charger
The more relevant WLAN test ends after 4:22 h. The 355E5C (3:51 h) and the Aspire (3:55 h) have to end their operations earlier. During the WLAN test, websites are automatically opened for 40-second intervals. The energy saving profile is active and the display brightness is set to 150 cd/m². One charge of the battery provides DVD playback time of 3:51 h. Once again, the competitors (Samsung: 3:24 h, Acer: 3:10 h) fail to keep up. The DVD test is conducted with activated energy saving profile (or a higher profile, if the DVD does not run smoothly), full screen brightness and deactivated radio modules. ASUS Eee PC 1015PEG Charger
The HP Compaq CQ58-350sg offers low energy consumption, low case temperature, moderate system noise and good battery runtimes. Despite those advantages, it is difficult to recommend buying this notebook. The low-contrast screen is not very convincing and neither is the twelve-month guarantee. Additionally, latest interfaces are missing from the device (USB 3.0, Gigabit-Ethernet). ASUS Eee PC 1015PEM Charger
If low energy consumption is not the main purchase criterion then there are better notebooks in the price segment of 300 to 400 Euros (~$391 to $521). For example, the Dell Vostro 2520 offers better battery runtimes and much more computing power. The Acer Aspire E1-531 is suitable for when a good display is needed. The Aspire's high-contrast screen is difficult to come by in this price segment. Anyone who prefers a matte screen should turn to the Samsung 355E5C-S02DE .
|Wednesday, April 17th, 2013|
|10mw Blue Violet star laser pointer pen
10mw Blue Violet star laser pointer pen
10mw Blue Violet star laser pointer pen
- Inventory status : Have in stock
- color :blue violet
- size :13.5mm X156mm
- 7.83 $
Our commitment : 100% Brand New , Factory direct sales , 7 days package returned, Warranty 1 year If there are problems , please contact us.
1.Size: φ13.5mm X156mm
3.Surface treatment: rubber paint（shell）Electric sand chrome（part）
6. security level: ClassⅢB
7.circuits control: boost constant current circuit
8.Spot form: Punctate+ star
9.Beam type: Continuous linear
10. spot size : 10mm< φ18mm
11.Focus: fixed focus
12.Operating current: low than 60mA
13.Operating voltage: DC=3~3.7V
14. starting voltage: DC=2.6V
15. booting time:0
16.Working temperature:0℃ - 35℃
17. Storage Temperature: -10℃～ 40℃
18 Package: lintbox
19 .Power supply: 2*alkaline cello(including)
405nm Wavelength laser (blue-violet light) is very dark, if you need brightness laser pointer, please choose the red laser or green laser.
1.Do not look into the aperture of the laser beam,and do not aim into eye!
2.Do not repeat to switch the laser pointer within 1 min, otherwise it will shorten the lifetime of the laser pointer.
3.Take off the battery and Keep out of reach of children!
4.Charging or changing the battery once the laser beam brightness seriously drop!
1. The laser can bright enough when you light it in normal temperature, so you had better do not light it continually in 30 seconds
2. Avoid direct eye exposure to laser beam (any contact to the human eye can cause permanent damage). Never expose your eyes or anyone else's to the laser beam
Please put it away from children to avoid the danger by contacting. When do not use it, please take off the battery from the laser in order to avoid the damage by the children's contacting
Contradistinction of the green, red and blue violet laser pointer:
Brightness: green>red>blue violet
Price :red< green< blue violet
Poly thermal performance: green< red＝blue violet
Stability: green< red＝blue violet
A laser pointer is a small laser designed to highlight something of interest by projecting a small bright spot of colored light onto it. The laser beam is not in itself visible from the side, but is visible as a result of light scattered by dust particles along the beam path. The small width of the beam and low power of typical laser pointers make the beam itself invisible in a reasonably clean atmosphere, showing a point of light when striking an opaque surface. Some higher powered laser pointers are faintly visible via Rayleigh scattering when viewed from the side in moderately to dimly lit conditions.
50mw Blue Violet star laser pointer pen 5 in 1
50mw Royal Purple laser pointer pen single star
5mw red laser pointer LED flashlight laser pointer pen Violet currency check lights with Carabiner
5mw red laser pointer electronic pen
200mw Focusable Red Laser Pointer Flashlight Torch can burn matches or cigarette
|Thursday, December 27th, 2012|
|MAKITA BTW200WA battery
MAKITA 678102-6 Power Tool Battery,MAKITA 678102-6 Cordless Drill Battery
- Capacity: 2000 mAh
- Voltage: 4.8 V
- Color: Black
- Cell Type: Ni-Cd
- Weight: 210 g
- Dimensions: 87.00 x 45.35 x 22.69 mm
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MAKITA 193889-4 Power Tool Battery,MAKITA 193889-4 Cordless Drill Battery
- Capacity: 2500 mAh
- Voltage: 9.6 V
- Color: Grey
- Cell Type: Ni-Cd
- Weight: 453.5 g
- Dimensions: 181.60 x 48.40 x 29.40 mm
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- Capacity: 3000 mAh
- Voltage: 9.6 V
- Color: Grey
- Cell Type: Ni-Cd
- Weight: 521 g
- Dimensions: 181.60 x 48.40 x 29.40 mm
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MAKITA 193127-4 Power Tool Battery,MAKITA 193127-4 Cordless Drill Battery
- Capacity: 3300 mAh
- Voltage: 24 V
- Color: Dark Blue
- Cell Type: Ni-Cd
- Weight: 1472 g
- Dimensions: 120.48 x 86.82 x 96.72 mm
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MAKITA 193127-4 Power Tool Battery Compatible original Battery Code: MAKITA 193127-4 Power Tool Battery Fit with below:
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|Friday, December 21st, 2012|
|Toshiba Satellite L300 battery
Review Fujitsu Stylistic Q550 Oak Trail Tablet/MID
Fujitsu wants to jump on the bandwagon moving at full speed with its Stylistic Q550 and grab some market shares. The company wants to particularly address business clients with the tablet compared to the consumer aligned devices. In addition to a fingerprint sensor, there is a SmartCard slot, the Advanced Theft Protection (ATP) and a Trusted Platform Module (TPM) installed. In view of the aspired target group and a simple integration of the existing IT infrastructures, Fujitsu relies on Microsoft's Windows 7 Professional including the enclosed stylus for the input interface. Dell Inspiron N5010 battery
The non-reflective 10.1 inch multi-touchscreen has a resolution of 1280x800 pixels in a 16:10 format and can either be used with a finger or the stylus. The latter has a battery and the system automatically detects when the user is working with it. Thus, one hand can rest on the screen without triggering an action, for example. The new Intel Atom Z670 single core processor (Oak Trail range) with a clock rate of 1.5 GHz and the incorporated GMA 600 graphics unit work inside the Q550. The given bundle is finished off by WLAN, Bluetooth and an SSD memory capacity of 30, respectively 62 GB. Naturally, a 3G UMTS module is also available for a surcharge. Acer Aspire One 753 battery
The numerous features aren't really inexpensive and entry is first possible starting at 699 euros (RRP) including value added tax. Comparable consumer tablets with Apple's iOS or Android are partly a lot cheaper and bid an optimized user interface. We've checked the qualities and the everyday usability of the Fujitsu Stylistic Q550. Toshiba PA5026U-1BRS
Apparently, Fujitsu believes that a tablet, primarily aimed at business customers, has to look conservative. Boring looks in black and light gray paired with all-over simple plastic isn't convincing. The workmanship doesn't meet our expectations on such a device. Partly sharp edges on the case, an audible creaking when the tablet is twisted and when the stylus is pressed harder on the screen are conspicuous. Moreover, the black display bezel attracts dust and fingerprints magically, despite it allegedly having a special finish. Thus, the tablet is on a par with consumer devices. The controls on the case's right are suboptimal, apart from the sliders. They can't be clearly felt and don't provide good feedback. Lenovo ThinkPad T410 Battery
Facts & Figures: The tablet weighs 857 grams, including the 4 cell battery, and measures 275 x 192 x 16.2 millimeters (w x d x h). Consequently, the Fujitsu Stylistic Q550 plays in the upper league in terms of weight, where the WeTab with an 11.6 inch display (850 grams) or the Asus Eee Slate EP121 (1160 grams) is also found. The Apple iPad 2 (601 grams), Acer's Iconia Tab A500 (700 grams), the Motorola Xoom (730 grams) or the Galaxy Tab 10.1 from Samsung (595 grams), as opponents, are all lighter. The dimensions aren't irregular in width and height. But there are clear differences, depending on the device, in the construction height. The Apple iPad 2, for example, is only 8.8 millimeters thin, but in return doesn't have any interfaces on its sides. IdeaPad Y560P battery
The flipside is closed and accessing the built-in components isn't possible. The easy to replace lithium polymer battery is positive. There are a few stickers and the SIM card slot underneath it.
Apparently, Fujitsu believes that a tablet, primarily aimed at business customers, has to look conservative. Boring looks in black and light gray paired with all-over simple plastic isn't convincing. The workmanship doesn't meet our expectations on such a device. Partly sharp edges on the case, an audible creaking when the tablet is twisted and when the stylus is pressed harder on the screen are conspicuous. Moreover, the black display bezel attracts dust and fingerprints magically, despite it allegedly having a special finish. Thus, the tablet is on a par with consumer devices. The controls on the case's right are suboptimal, apart from the sliders. They can't be clearly felt and don't provide good feedback. DELL XPS L701x battery
Facts & Figures: The tablet weighs 857 grams, including the 4 cell battery, and measures 275 x 192 x 16.2 millimeters (w x d x h). Consequently, the Fujitsu Stylistic Q550 plays in the upper league in terms of weight, where the WeTab with an 11.6 inch display (850 grams) or the Asus Eee Slate EP121 (1160 grams) is also found. The Apple iPad 2 (601 grams), Acer's Iconia Tab A500 (700 grams), the Motorola Xoom (730 grams) or the Galaxy Tab 10.1 from Samsung (595 grams), as opponents, are all lighter. The dimensions aren't irregular in width and height. But there are clear differences, depending on the device, in the construction height. The Apple iPad 2, for example, is only 8.8 millimeters thin, but in return doesn't have any interfaces on its sides. V13 battery
The flipside is closed and accessing the built-in components isn't possible. The easy to replace lithium polymer battery is positive. There are a few stickers and the SIM card slot underneath it.
The multi thread calculation of Maxon's Cinebench R10 (34 bit) is a popular benchmark for checking the CPU performance. The Q550 tablet only managed weak 537 points in this test and lies well-beaten at the end of our database, where everything from a netbook up to a high-end notebook is found. Despite their high performance profile, netbooks with the latest hardware are clearly at an advantage. Two examples would be the Asus Eee PC 1015PEM with an Intel Atom N550, and the somewhat weaker Acer Aspire 522 netbook with an AMD C-50 APU. These configurations are nominally faster by 64.3%, respectively 58.5% with a result of 1504 and 1294 points. LENOVO ThinkPad Edge E220s Battery
The Intel GMA 600's (PowerVR SGX) 3D performance isn't convincing, either. It's just enough for poor 253 points in the older 3DMark05. However, the Intel GMA 3150 in new netbooks isn't really stronger on average and also only achieves 294 points, which is a slight plus of 14%. The AMD C-50 APU, as a dual core solution from the entry level sector, can clearly excel in this field with the stronger AMD Radeon HD 6250. An evident performance plus of 90.3% is possible with averagely 2599 points. DELL Latitude E6520 battery
The system benchmarks from Futuremark provide a small performance verdict. The tablet reaches 1191 points in the overall rating in PCMark Vantage and finds itself within the last places of our database. Various netbooks with somewhat older Intel Atom processors are in the immediate vicinity. The tablet currently occupies the last place, behind netbooks with AMD's C-50 APU, in the newer PCMark 7. Overall, not a very impressive presentation for a device with a Windows operating system. LENOVO IdeaPad Z580 Battery
Naturally, a look at the numerous tablet, respectively browser benchmarks shouldn't be left out in this test. In comparison to current devices with Android and the leader, Apple iPad 2, the Q550 is throughout in the upper performance range in this test. Samsung NP-Q45 battery
The memory medium, in form of a solid state drive (SSD) is permanently built-in and available with 30 or 62 GBs, as desired. We're testing the smaller model, the THNSFB030GMSJ from Toshiba. The AS SSD benchmark specially designed for SSDs only reports a weak performance after a successful run through. The medium is on a par with a slower notebook hard disk with a maximum of 76.73 MB/s (read) and 42.65 MB/s (write). Nevertheless, the low access speeds are still a bonus point, whereas the rate is slightly increased during writing. Unfortunately, the exchange for a faster alternative is apparently not possible. SD memory cards would be recommended should more memory capacity be required. Sony VGP-BPS21
HD Video and Gaming Verdict
HD Videos is enjoying a growing fan community and users of a tablet would like to benefit from this, as well. The Q550 already has problems with videos in a 720p resolution. It doesn't matter if it's a flash video from YouTube or a local file with H.264 video compression. The average frame rate was between 8 and 15 fps on YouTube and thus remote from a smooth playback. The Intel 7670, including the GMA 600 graphics, is consequently on the poor level of the Pine Trail platform for netbooks. Acer AS10D51
The Fujitsu tablet also fails in mere gaming performance and is on, if not below the level of an Intel GMA 3150 graphics unit. In view of Apple's iOS or Google's Android, we have to note that there are a lot of games available for this platform that are optimized to a similar performance and can be rendered smoothly. The Q550, with the Windows 7 operating system, can only fall back on the common desktop games, which are usually developed for stronger devices to which our test device definitely doesn't belong. Sony VGP-BPS13B/Q
The memory medium, in form of a solid state drive (SSD) is permanently built-in and available with 30 or 62 GBs, as desired. We're testing the smaller model, the THNSFB030GMSJ from Toshiba. The AS SSD benchmark specially designed for SSDs only reports a weak performance after a successful run through. The medium is on a par with a slower notebook hard disk with a maximum of 76.73 MB/s (read) and 42.65 MB/s (write). Nevertheless, the low access speeds are still a bonus point, whereas the rate is slightly increased during writing. Unfortunately, the exchange for a faster alternative is apparently not possible. SD memory cards would be recommended should more memory capacity be required. Toshiba Satellite L300 battery
HD Video and Gaming Verdict
HD Videos is enjoying a growing fan community and users of a tablet would like to benefit from this, as well. The Q550 already has problems with videos in a 720p resolution. It doesn't matter if it's a flash video from YouTube or a local file with H.264 video compression. The average frame rate was between 8 and 15 fps on YouTube and thus remote from a smooth playback. The Intel 7670, including the GMA 600 graphics, is consequently on the poor level of the Pine Trail platform for netbooks. Asus K50AB battery
The Fujitsu tablet also fails in mere gaming performance and is on, if not below the level of an Intel GMA 3150 graphics unit. In view of Apple's iOS or Google's Android, we have to note that there are a lot of games available for this platform that are optimized to a similar performance and can be rendered smoothly. The Q550, with the Windows 7 operating system, can only fall back on the common desktop games, which are usually developed for stronger devices to which our test device definitely doesn't belong. HP 484171-001 battery
The BatteryEater tool can fortunately be used for checking the battery runtimes owing to the fitting operating system. The Classic test simulates use during load with maximum display brightness and enabled WLAN adapter. This measurement is finished after short 3 hours and 36 minutes. The opposite of this is the integrated Reader's test, which reproduces reading a text document. 10 hours and 32 minutes are possible with minimum display brightness and disabled WLAN. The Stylistic Q550 doesn't have to hide from the competition with that. However, these assessments usually only represent extremes. 6 hours and 22 minutes are possible in the scenario "surfing via WLAN" with a pleasant display brightness. This measurement comes close to real-life use patterns. Asus A53S Battery
The Fujitsu Stylistic Q550 tablet/MID leaves us with a mixed impression. The x86 operating system and its possibilities, the acceptable battery runtimes and the bright IPS screen are on the pro side. These plus points are afflicted by a weak performance, a conservative case with suboptimal stability and workmanship, as well as the lack of optimization for touch operation. The vast amount of security features and the included stylus are impressive, but full-fledged tablet operating systems are definitely more convenient in use. Dell Latitude E4310 battery
Overall, it is a portable work device that, in our opinion, will likely only appeal to a few consumers. Such a bundle could get interesting with the recently presented Windows 8 operating system, since the present touch interface is very coarse in its current state. We can't ignore the fairly steep starting price of 699 euros (RRP) despite the good warranty period of 24 months. However, the value added tax of 19% will be a secondary concern for businesses. They will also be the main clients of the Q550, since it is one of the few tablets that support Windows and thus can easily be integrated into an existing infrastructure.
|Thursday, October 25th, 2012|
|Lenovo 42T4893 battery
Review Lenovo ThinkPad X121e NWS5QGE Subnotebook
The ThinkPad X121e is the successor of the ThinkPad X100e and should be able to do everything a little bit better. Longer battery life, less heat generation, rounded off with more performance are the basic goals. Lenovo L08O4C02 battery With the current model, you can choose from several CPU models. While the X100e was only available with AMD processors, you can now also pick an Intel Core i3-2357M CPU. This Intel version has already been tested by our U.S. editors.
We have here the AMD version with a Fusion E-350 CPU with its integrated Radeon HD 6310. A further alternative is available with the AMD C-50 CPU and a HD 6250 GPU, which can be configured in Lenovo's Web-Shop. Further appointments of our test model are comprised of a matte 11.6" display, a 320GB hard drive and 4GByte RAM. Lenovo L08O4CO2 battery The unit comes without operating system, reducing the cost to a particularly low 370.- euros.
The look of the small X-series entry level notebooks fits perfectly into the line's concept. Design gimmicks are absent, the case is as sober as ThinkPad aficionados prefer. The black textured plastic gains a little highlight with the familiar red elements of the track point assembly. If the red display variant will be liked by the existing patrons will depend on individual taste. Pictures of this version can be seen in the test of the ThinkPad X121e with Intel CPU. Lenovo L08O6C02 battery
While the look of our test unit is alright, one has to accept a number of drawbacks in regards to case quality. The wrist rest is generally firm, but can be noticeably depressed when clicking the touch pad buttons. A further weakness is the large cutout for the battery at the rear. Here, it is possible to flex the housing by pushing and pulling, causing creaking sounds here and there. At least, the battery fits almost perfectly and has minimal play. Lenovo L08O6CO2 battery The hinges hold the display properly in position, and the display lid makes a solid impression overall. The bottom is also sturdy, in spite of a large access cover, and only gives with stronger pressure in narrowly localized spots. All relevant components are easy to reach, thanks to the large access cover. Removal of keyboard and wrist rest to add a UMTS module, for example is unnecessary. Hard drive, RAM and wireless modules are easy to exchange after removal of 3 small screws.
Lenovo L08S6C02 battery The unit is smaller than the X220, but it fails to gain an advantage in weight. With 1.54 kg (3.4 lbs) it matches the weight of the X220 with IPS panel we tested before. The 11.6" subnotebook is mobile none the less, and using the available 3 cell battery, you can shave about 100 gram (0.22 lbs) off the weight. There was no cost cutting in regards to the significantly over-sized 65 Watt standard Lenovo power supply, which can be left at home most of the time, with its weight of 360 gram (0.79 lbs)
Lenovo L08S6CO2 battery Like all currently available pre-configured AMD models, 0ur test model sports the AMD Fusion E-350 APU, containing a dual core CPU, GPU and memory controller. The processor is clocked at 1.6 GHz and sports a 1 MB L2 cache (2x 512kB). This CPU does not offer hyper threading or turbo boost. At least the integrated Radeon HD 6310 with UVD3 video processor and 80 Shader units is pretty potent for an integrated GPU and can accomplish many of the usual tasks. The GPU core is clocked at 493 MHz and uses shared RAM as usual. Lenovo L08S6D02 battery According to the spec sheet, the memory controller disposes only a single channel. Since there is no dual channel operation, different RAM configurations should have no effect on performance. We performed several tests in that regard and will come back to this subject later on.
The alternative configuration with the AMD Fusion C-50, available in Lenovo's online shop, sports a nearly identical setup, but was optimized for a lower thermal design power (TDP) of 9 Watt instead of 18 Watt. Thus, the CPU is clocked at a mere 1 GHz, and the GPU (HD 6250) tops out at 280 MHz. Performance should be comparable to an Intel Atom Z550 CPU, we tested this combination in the Iconia Tab W500.The Fusion C-50 APU could be an alternative for those who seek a cool, (probably) silent computer with long battery life, in trade for lower performance. Lenovo LO8L6C02 battery
The ThinkPad X121e can be configured at Lenovo's online shop with either a 3 cell battery (which seems to only be available during the system's configuration and not as a separate accessory), or a 6 cell battery (63 Wh, 0A36292). Separately, the 6 cell battery sets you back 120.- euros, the price increase from the 3 cell battery is just under 16.- euros, during system configuration in the online shop. Our test model sports the bigger 63 Wh battery, which makes an important contribution to the good battery life. Lenovo LO8N6Y02 battery
An equal contribution is made by the power consumption we measured. With a minimum of 6 Watts (minimal brightness, energy saver profile, WIFI deactivated) up to a maximum of 24.2 Watts (maximum brightness, maximum performance profile, WIFI on), the X121e remains frugal in all modes.
Lenovo LO8O4C02 battery Both factors had a very positive effect on battery life. With the Battery Eater Readers Test (minimal brightness, energy saver profile, WIFI deactivated), we achieved a runtime of 677 minutes. With these settings, the CPU is clocked at 800 MHz and the GPU runs at 280 MHz. Because the notebook wasn't useable with the minimum brightness setting, we repeated the test with maximum brightness and activated Wireless modules, which reduced the runtime to 498 minutes.
Lenovo LO8O6C02 battery When conveniently surfing over WIFI, we were left with 432 minutes. Stutter free playback of a DVD video from the hard drive, using the MPC Home Cinema Player (28% CPU load) ran for 316 minutes. The Battery Eater Classic test (maximum brightness, maximum performance profile, AMD HD6320 max. performance in battery mode, WIFI and Bluethooth on) could still reach 211 minutes, and rounded out our battery tests positively.
Lenovo LO8S6C02 battery The Lenovo ThinkPad X121e could not match the case qualities of the X-series, but reached a competitive level, that compares with many subnotebooks. The installed interfaces cover a wide spectrum, though connector positioning is partly unfavorable, which may cause issues. Also unpleasant is the relatively high noise level under minor load, but in return, the surfaces remain very cool.
Performance ranges between netbooks and entry level Core i3 systems. HD videos play smoothly, office tasks can be conducted fluidly and without problem and the speedy hard drive offers sufficent space for data with its 320 GB. Playing games is possible, but only at low resolution and low quality settings. IBM 02K6821 battery
The matte display offers good brightness and is evenly lit. Contrast and viewing angles are on the same level as common notebook displays.
Very positive is the easy access of components, through the access cover in the notebook bottom, which makes upgrades fast, without requiring much effort
The greatest advantage has to be the high level of mobility for an 11.6" notebook. With realistic runtimes of more than 7 hours and a weight of 1.54 kg (3.5 lbs), you will find it to be a solid companion that keeps on ticking, without increasing the size of your bag too much. IBM 02K6822 battery
Overall, the entry level ThinkPad offers a lot of performance, features, battery life and upgrade options; at current prices below 400.- euros, it is unique in this combination and price range.
Review Lenovo Thinkpad Edge E520 Notebook
Lenovo's ThinkPad Edge series is aimed at buyers who find standard ThinkPads too expensive or too dull. The top tier of the Edge series comprises of the Lenovo ThinkPad Edge E520, the smaller E420 and the previously tested E420s (the two should not be confused with each other). The E520 is quite different from the usual B2B notebooks. The laptop has a matt 15.6 inch display and a subtle design. IBM 02K6823V battery The front of the laptop is angled like a wedge and the laptop manages to leave a good impression even without the use of shiny lacquer. The notebook runs on the latest hardware, and the user can customize the laptop extensively before purchasing. We picked the mainstream configuration which offers an Intel Core i5-2410M, an AMD Radeon HD 6630M graphics chip and 4 GB of RAM.
IBM 02K6824 battery Lenovo will soon release the ThinkPad Edge E425 and E525, both of which use the new AMD Llano-APUs instead of the popular Intel mobile CPUs. In the USA, these notebooks will be available starting at 549 US dollars. Currently, our test model is priced (the mainstream configuration without UMTS module) costs around 650 Euros. In the following review, we will push the laptop through a variety of benchmarks and tests. The ThinkPad Edge E420s may not have made the cut, but the question remains: has Lenovo found the perfect middle-ground between cheap mainstream notebooks and expensive high-end business devices in the ThinkPad Edge E520? IBM 02K6825 battery
"New Design. New Form. And Better Than Ever." - Lenovo gives the E520 wholehearted support, as is apparent from the above motto. It seems that they might be promising too much as the test model before us seems rather chunky with a weight of 2.46 kilograms and a (maximum) height of 33 millimeters. The matt black surface has a nice "Soft touch" surface coating and the front of the case flattens abruptly like a wedge. IBM 02K6829V battery The colors available for this model may not be extravagant, but the robust case makes up for it. The case is hard to scratch, but fingerprints accumulate quickly. The workmanship of the notebook is disappointing: the synthetic material used for the case looks cheap in parts, the battery sits loosely, and the display cover is weak.
The sturdiness of the base left us divided. On the one hand, the hand-rest regions proved to be quite resistant, whereas the keyboard gives way near the middle and above the DVD drive. Lenovo has picked high-quality metal hinges for the E520. The black hinges manage to hold the display with minimal movement most of the time. IBM 02K6830V battery However, when the display is pushed backwards, the hinges have a hard time holding it securely. This is especially evident when the display is opened at angles between 160 degrees and 180 degrees.
A T-shaped flap on the bottom of the laptop hides the RAM and the hard disk. Once removed, the RAM and the hard disk can be easily swapped out or upgraded. Unfortunately, the case fans can not be reached, which means that there is no way to clean out the dust which gather over time. The ThinkPad Edge E520 is set apart from typical business notebooks due to the missing docking interface at the bottom of the laptop. IBM 02K6831 battery
Who says that office notebooks have to be slow and can only be used as mobile typewriters? Lenovo offers a variety of configurations for our test model. We picked the Intel Core i5-2410M (dual-core) as our CPU, as it is currently the fastest processor available for the E520. The CPU has a 3 MB L3 cache and runs at 2.3 to 2.9 GHz (thanks to Intel Turbo Boost). Overall, this processor is a popular choice for laptops under 1000 Euros. IBM 02K6832 battery
The E520 has two graphic chips: the Intel GMA HD 3000 (integrated in the CPU) and the dedicated AMD Radeon HD 6630M GPU, which has a core speed of 485 MHz and 1 GB VRAM. Thanks to AMD's PowerXpress 4.0 alias "BACON" the laptop can automatically switch between graphic chips. The software still has a few kinks: some programs are not recognized which means that the user has to manually pick the desired graphic card. The hardware of the notebook is rounded off with 4 GB RAM (max. 8 GB on two slots) and a 500 GB hard disk. Lenovo 42T4889 battery
The built-in hardware offers good performance and decent energy saving. The system saves a lot of power thanks to the "Energy Saver" of the Intel Core i5-2410M, which drops the CPU clock frequency to 800 MHz when it is idle, and the automatic graphics switching technology, which switches between the integrated CPU graphics and the dedicated AMD GPU. The maximum power consumption of 61 W is in the green region for this configuration and laptop class. The laptop consumes between 6.7 to 11.2 watts while idle. These values are similar to those of the latest netbooks. Lenovo 42T4891 battery
The resulting power consumption should be sated by a 6 cell battery with a capacity of 48 W. Lenovo places its model in the middle field with this solution, and for longer life a battery with more capacity or a second battery will have to be bought separately.
Lenovo 42T4893 battery Thanks to the 6-cell Lithium-Ion battery the laptop has acceptable run times for an office notebook. With minimal brightness (10 cd/m²), the use of the integrated Intel GMA HD 3000 graphics and deactivated WLAN module, the laptop can last up to 6 hours and 34 minutes (Reader's Test). In contrast, in the Classic Test, which runs an OpenGL calculation with maximum brightness, activated AMD Radeon HD 6630M and the WLAN module turned on, the run times drastically drop to 67 minutes (the minimum).
Lenovo 42T4894 battery These two measurements show the extremes of the laptop run times. The measurement of the run time while "surfing with the WLAN" or "watching a DVD" represents a more realistic average run time. The run time of 4 hours and 46 minutes (watching a DVD) and 5 hours and 32 minutes (while surfing on the internet using the WLAN) shows that the laptop has pretty good run times, but is not exceptional.
Lenovo 42T4895 battery The Lenovo ThinkPad Edge E520 is quite good as a middle-ground between expensive business laptops and cheap consumer notebooks. However, the laptop has a few flaws. As our test model revealed, the surfaces have a nice "Soft Touch" coating, but the case itself is not very slim, and the workmanship and sturdiness are less than optimal. The connectivity is good (except for the missing USB 3.0 port) and is complemented well by the latest communication modules. The input devices include a separate numeric pad, and are quite good as they are well-known by customers. The matt 15.6 inch screen is obligatory for laptops with the "ThinkPad" title. Sadly, the panel from AUO lacks good values. Lenovo 42T4897 battery
In respect to performance the laptop leaves no stone unturned. Office and multimedia tasks can be dealt with without any problems. Additional plus points are earned thanks to the energy saving hardware which results in low power consumption while the laptop is idle, and thus good battery run times. There are a few major flaws, such as the loud DVD drive, the high case temperatures (while the laptop is under heavy load) and the short guarantee period of 12 months. Lenovo 57Y4558 battery Overall, the laptop is a good deal for 650 Euros and can be a decent alternative to some glossy plastic 15.6 inch mainstream models. However, a few aspects could have been better.
|Thursday, October 18th, 2012|
|Acer Aspire One D250-1Br battery
Notebookcheck's Best of September 2012
August was a month of opposites: expensive models, like the EliteBook 8570p (1,500 Euros), the high-end Acer Aspire S5-391 Ultrabook with a Low Voltage Core i7 (1,500 Euros), or the Sony Vaio SV-Z1311Z9EX, which covers the AdobeRGB color space (2,400 Euros), made up the higher price category. Acer Aspire 4739 Battery Again and again, we noticed that even the most expensive models have weaknesses. This is bad news for the manufacturers, as anyone willing to pay such a high price for a laptop, will weigh the flaws just as heavily.
On the other side, we have the low cost models. We tested a range of cheap laptops which cost between 250 to 450 Euros. We found laptops we would not recommend, like the Lenovo IdeaPad S206, and models which positively surprised us, like the ThinkPad Edge E135/E130. Acer Aspire 5738G battery These 11.6 inch ThinkPad notebooks scored 86 points (out of a 100) in our test, which is surprising as the mini business laptop, HP Elitebook 2570p, scored the same, yet costs nearly 2,000 Euros.
Most of our August reviews revolved around mainstream devices (400-800 Euros). This includes high-class Smartphones (Apple's iPhone 5 - 90%), and tablets like the Acer Iconia Tab A700 (449 Euros). This tablet sports a Full-HD resolution, but does not have a true IPS panel. The Apple iPhone 5 stands alone in the Smartphone category in September as no other devices were tested in this period. Acer Aspire One 721-3574 battery
The Dell Precision M4700 workstation (90%) was also unopposed in our test. This professional laptop houses a 256 GB SSD and a 1 TB hard disk. The processor is a quad-core i7, which can hit 3.6 GHz with Turbo Boost. The previous Precision workstation had the same case and was introduced at the end of 2011. At that time, the Quadro 4000M and an i7-2920XM ruled the hardware world. acer al10a31 battery
Gaming laptops were scarce in September. We only tested the Deviltech Fragbook 17 with a GeForce GTX 675M and an i7 3610QM. Ths MSI case is a little outdated but the laptop has a matt Full-HD screen, with great viewing angles and a good contrast. Gamers, with a low price limit, should take a look at the Fragbook (1,350 Euros), as similarly-performing laptops include the Samsung Series 7 Gamer (1,800 Euros) and the Schenker XMG P702 Pro. Acer Aspire One 753 battery
Asus UX32A-R3001V - 86 %
HP Elitebook 2570p-B6Q10EA - 86 %
Lenovo ThinkPad Edge E130 NZU5FGE - 86 %
Acer Aspire S5-391-73514G25akk - 84 %
Sony Vaio SV-Z1311Z9EX - 84 %
Sony Vaio SV-S1311G4E - 82 %
Acer Aspire V5-171-53314G50ass - 79 %
HP Envy Spectre XT 13-2000eg - 79 %
The 8 subnotebooks of August ranged from the 300 Euro Edge E130 to the HP Elitebook 2570p, and thus covered the entire breadth of small, handy notebooks. Acer Aspire 4820TG battery The UX32A-R3001V is an Asus Ultrabook for buyers with small purses. This 13.3 inch model costs 800 Euros and does not have an aluminium unibody, a SSD or strong viewing angles. This would be fine for the price, but the slow Core i3 will surely dampen the spirits of performance enthusiasts.
The HP Elitebook 2570p takes an entirely different direction. The business 12.5 inch laptop is equipped with a Core i7 3520M and a Micron RealSSD C400. The notebook offers great performance, which negatively affects the emissions. However, the run time is unaffected at 6 hours. The laptop has a matt display which is too dark for outdoors use. Acer Aspire 5536 battery
HP wants 2,000 Euros for its mini business model, whereas Lenovo is satisfied with a mere 375 Euros for its ThinkPad Edge E130 (running Free-DOS). Lenovo targets the masses, who require good everyday performance, with this low-cost ThinkPad. This laptop offers exceptionally good input devices, workmanship, emissions and mobility for this price class. The previously-mentioned Edge E135 is the identical AMD sibling. Acer Aspire One AO721-3574 battery
Kiefer Sutherland introduced it in Acer's advertisement, and now we have it before us; he Aspire S5-391 is a premium model which will require the buyer to shill out 1,500 Euros. The model is filled to the brim with high-end tech: RAID-SSD, Core i7 and motorized rear ports (Thunderbolt!). Unfortunately, the installed 08/15 TN screen (glare) has weak colors and poor viewing angles. Acer Aspire 1420P Battery
So if Acer's flagship can "only" hit 84%, what can the Sony Vaio SV-Z1311Z9EX achieve? Sadly, this 13.1 inch Vaio scored the same, due to high emissions, weak brightness and throttling of the CPU at load. For now, we have taken down the review of the Vaio and are running our tests on a second model to see if the CPU throttling was a flaw in our test model, or if it is a flaw in the entire series. The outcome of this query will not alter the final score of the laptop by much. Acer Aspire One AO721h battery
Are 850 Euros in your range? Sony shows us that it can offer reasonably-priced laptops in the form of the white Vaio SV-S1311G4E. The hardware is not extraordinary: a Sandy Bridge Core i5, HDD and a 08/15 HD panel. The input devices were comfortable to use and the keyboard is backlit. The case offers the same great features as the case of the more expensive SV-E models: good sturdiness and a slot-in optical drive. Acer Aspire 2930 battery
Acer's Aspire V5-171 is a special model: this 11.6 inch model runs on a typical Ultrabook CPU, the Core i5 3317U, which accelerates the unit much more than the Pentium in the Lenovo ThinkPad Edge E130. We did not expect a good display from Acer, but we did want decent battery life. Unfortunately, the 3-cell battery can only last 3:33 hours. That is very little for 600 Euros. Acer Aspire One 532h-2Db battery
The HP Envy Spectre XT 13-2000eg is a true Ultrabook. It is light and measures 13.3 inches. HP offers the notebook for around 1,000 Euros and equips it with a SSD. Sadly, the TN panel has weak contrast and poor viewing angle stability. However, the high-quality case, good-feedback keyboard (backlight) and high program performance are worth your money. The noticeable emissions and CPU throttling at full load are additional flaws, which drop the rating to 79%. Acer Aspire One 532h-2527 battery
Subnotebook of September 2012: the Lenovo ThinkPad Edge E130 NZU5FGE
We had a stalemate: the Asus UX32A, the HP Elitebook 2570p and the Lenovo ThinkPad Edge E130 (86%). So what did we do? We picked the cheapest model of the three, the Edge E130, as it offers the best price-to-performance ratio. This model is not distracted by the current "Ultra Slim" fashion trends and aims for the core ideals of a work laptop; in fact, it does not even need a SSD or a Core i5 to successfully achieve them. Acer Aspire One 532H battery
Dell Latitude E6430 - 86%
HP EliteBook 8570p-B6Q03EA-ABD - 86%
Dell Latitude E5430 - 84%
Acer TravelMate P453-M-53214G50Makk - 82%
Lenovo B570e-N2F23GE - 81%
Acer Aspire S3-391-53314G52add - 80%
HP Compaq Presario CQ58-148SG - 79%
MSI CR643-B9404CR - 78%
Wortmann Terra 1450 II - 78%
Acer AO532h-2406 battery The office laptops of August include sturdy business notebooks, such as the EliteBook 8570p, and cheap devices, like the Compaq Presario CQ58. The Wortmann Terra 1450 II and TravelMate P453-M lie in the price range spanned by the two models above.
The Dell Latitude E6430 (14 inch) is being upgraded to Ivy Bridge, but retains its massive and very high-quality case. This laptop is cheap, compared to other Latitude models, and is equipped with a HD panel, which we can not recommend due to poor colors, brightness and viewing angles. Dell offers an upgrade to the HD+ screen found in the predecessor for a mere 34 Euros. Acer UM09E31
The HP EliteBook 8570p is a 15.6 inch business laptop. It's resolution is an adequate 1600x900 pixels, and it offers better brightness, colors and viewing angles than the Latitude E6430. However, the input devices, workmanship and ports are of the same standard as the Latitude competitor. The short battery life and the lack of switchable graphics (no HD 4000) are two flaws in the HP laptop. Acer Aspire 1830T TimelineX battery
The Latitude E5430 is not the 15 inch version of the E6430, but instead represents a cheaper Latitude series with a different case. The amazing build quality and long battery life of the E6xxx-series can be found in this model as well. A HD+ display offers high brightness, but the laptop lacks the good contrast and resolution of the E6430 (optional). After seeing the decent input devices and the low noise emissions, it was clear that the E5430 offered a nice balanced between luxury and economy for a fair price. Acer AS07B41
The established business laptop manufacturers felt secure, till a new threat emerged: the Acer TravelMate P453-M (15.6 inch). The laptop loses a few points due to a cheap synthetic material case, modest input devices and a poor HD panel. The extremely low emissions are impressive, but they are countered by the lack of a docking port (important for business notebooks) and such few interfaces. The 650 Euros price tag is far lower than that of the other competitors. Acer Aspire 5735Z battery
It can drop further, claims Lenovo. The B570e-N2F23GE (Pentium B960) is a 15.6 inch laptop which focuses successfully on a few core properties which make the office life easier: good keyboard (touchpad is not so good), low emissions and decent battery life. Nothing more and nothing less for 400 Euros.
ACER Aspire 5745PG Battery HP's Compaq Presario CQ58 and MSI's CR643 belong to the same league. These 15.6 inch laptops deliver simple Pentium performance for the price of 350 Euros. Each model has its own strengths, even if they are few in number. The Presario CQ58 is especially cool and quiet, whereas the CR643 is noticeably loud. However, MSI has the brighter display and better contrast. Both models offer simple input devices. The big advantage of the CR643: almost all ports are placed on the rear. This placement is hard to find in such simple notebooks, but it can help keep the desk clear of cables. ACER Aspire 5745 Battery
Acer's low-cost Ultrabook proceeds to the second round with an Ivy Bridge CPU (Core i5 3317U). The 13.3 inch Aspire S3-391 (about 800 Euros) has a slow cache SSD on-board, instead of a SSD. However, it still delivers high program performance. We are disappointed by the battery life: under 4 hours. The HD display is not very bright and has weak contrast, which is to be expected of this price class. Acer Aspire 7551 Battery
The Terra 1450 II is a surprisingly cheap Ultrabook. Wortmann's specialty is the combination of a Core i3 and a 128 GB SSD. This is offered for the price of 700 Euros. Currently, only HDD and cache SSD Ultrabooks, like the Aspire S3-391, are sold at this price. At first, everything is good: sturdy case, good battery life (6 hours), decent input devices and good program performance. However, the matt display is extremely dark and the use in sunlight is practically impossible.
Office laptop of September 2012: HP EliteBook 8570p
Acer Aspire 1830Z-U514G50n TimelineX battery Elite or Latitude? We picked the EliteBook as it had the higher brightness and better contrast. Note: Dell also offers a good HD+ panel for its laptop. The rest is good: nice interface variety (docking), good upgrade possibilities, a cool case and good CPU performance.
Acer Aspire V3-551G-10468G50Makk - 80%
Fujitsu Lifebook AH532 - 80%
HP Pavilion dv7-7000sg - 79%
Sony Vaio SV-E1511V1EW - 79%
Samsung NP355V5C-S05DE - 78%
Toshiba Satellite L850-153 - 76%
Acer Aspire 1830T-33U3G32n TimelineX battery There were no excellent all-rounders in September. Instead, the focus was on cheap all-round laptops, which did not even have good enough hardware to hit the high digits in our test. We start with the Acer Aspire V3-551G with an AMD quad-core CPU and dual-graphics. This laptop costs less than 600 Euros. Sadly, it is not powerful in gaming as its Intel counterpart, the Aspire V3 (Geforce GT 640M), but it offers good enough performance to deliver medium details and HD resolution.
Acer Aspire 4820T battery Samsung is offering an AMD Trinity platform in the Series 3 355V5C. This laptop sports a dual-core processor, but has the same dual-graphics and Radeon HD 7670M as the Aspire V3-551G. The AMD dual-core does not limit gameplay, but we noticed that the dual-GPUs were at a disadvantage to the HD 7670M alone at low details. In this case, switching off this feature can increase performance.
Acer Aspire 5741-5763 Battery The Aspire V3-551G and Series 3 355V5C are plagued by micro-stutters as soon as the frames drop to around 30 fps. AMD has not been able to solve this issue for years. The program performance is fine for both, but users, who want high CPU performance, should look towards Intel.
For example, the Fujitsu Lifebook AH532 with a GeForce GT 640M LE. This laptop is available for the same price, and due to the LE version of the GPU, the graphics performance is slightly or not at all better than the Aspire V3-551G above. However, the driver support is good and no micro-stutters appear. Acer TimelineX 3820TG battery We did not have to manually set the performance modes thanks to Nvidia Optimus, which automatically picked the best profile for the scenario. Unfortunately, this 15.6 inch model got quite warm and uses excessive amounts of glossy synthetic material.
Less gloss, more elegance and high-quality aluminium surfaces - this would describe the 17-inch HP Pavilion dv7-7000sg well. The notebook is equipped with a GeForce GT 630M and a Core i5. The price starts at 700 Euros. The gaming performance is not sufficient to satisfy the 1600x900 pixel resolution. Problems also appear in games running at high details at the HD resolution. The Pavilion test model misses out on a rating above 80%, due to high temperature and noise emissions. The display also has weak contrast. Acer Aspire One AOD255E battery
The 15.5 inch Vaio SV-E1511V1EW is equipped with a similarly low-quality HD screen. This time a Radeon HD 7650M and a Core i5 come into play. This combination is good, but the GT 640M LE of the Lifebook AH532 performs better with high details in games. We like the good build quality and low noise emissions. Due to the low-quality touchpad, high temperature emissions and (at best) average gaming performance, we could only give this model a rating of 79%. Acer Aspire One D250-1Br battery
We finish off with the Toshiba Satellite L850-153, which is accompanied by the HD 7670M, a Core i5 and a display with weak contrast. The graphics card is not always powerful enough to deliver fluid gameplay at high details with the HD resolution. However, the AMD GPU performs quite well in comparison to the Nvidia GT 630M. Still, glaring weaknesses affect the rating of the 15.6 inch model and prevent it from hitting the high numbers. The synthetic material case appears cheap and is very sensitive, whereas most of the competition offers high-quality aluminium. Acer Aspire One D250 battery
Multimedia laptop of September 2012: Fujitsu Lifebook AH532
We were not overwhelmingly convinced by any one participant in this category. All the test models landed ratings between 76 to 80% due to serious weaknesses. We picked the Fujitsu Lifebook AH532, with a GeForce GT 640M LE and a Core i5. The graphics performance is slightly higher than a middle-class GT 630M, and the laptop offers low noise emissions and a good price-to-performance ratio: 650 Euros. The Core i7 configuration is also quite interesting (700 Euros). Acer Aspire 5100 battery
Lenovo ThinkPad Edge E135 NZV5YGE - 86%
HP Pavilion dm1-4200sg - 79%
Lenovo IdeaPad S206 M898UGE - 76%
All three 11.6 inch netbooks run on an AMD APU: the E-Series E2-1800/E1-1200. The IdeaPad S206 is priced aggressively at 250 Euros, but lacks important features, such as a good battery life or a matt display. The HP Pavilion dm1-4200sg does not impress us more. The run time is great, but the brightness of the reflective TFT panel is modest. In addition, the build quality is poor as the base of the laptop can be pushed inwards. The Lenovo ThinkPad Edge E135 is a completely different story: matt screen, strong battery life, excellent input devices, USB 3.0 and a sturdy chassis which offers a nice grip. Acer Aspire One 722 battery
Netbook of September 2012: Lenovo ThinkPad Edge E135
Lenovo does everything right. The Lenovo netbook combines good work performance with good mobility. At 385 Euros (for the Free-DOS version), buyers will not be limited to students only. The smallest Edge has even delighted the testers: the competition loses to this small model mainly due to poor battery life and/or their reflective displays.
|Wednesday, October 10th, 2012|
|Acer 6595TG battery
Review HP Compaq Presario CQ57-303SG Notebook
HP believes that this is unnecessary and equips its 15.6 inch Compaq Presario CQ57 with an energy-efficient Fusion APU from AMD's E range. To compensate the rather poor performance, it excels with an extremely low power consumption and low price design. Acer 5740Z-P604G32Mnss battery Our configuration, with an E-450, a 500 gigabyte memory capacity and a 4 gigabyte RAM, is available for less than €330 depending on the online shop. Other versions partly still use the somewhat weaker E-300, respectively Intel's Celeron or Pentium processor. The price ranges between €290 and €400 here.
The list of potential competitors is a lot shorter in this price range. Besides a number of netbooks that can't be used for comparison because of the different target group, only few such cheap models can be found in our database. Today, we not only receive this test candidate, but two other notebooks from the manufacturer, as well: The HP 630 and HP 635. We also send the Lenovo G575 into the fight. Clear the ring for the first round! Acer 5742 battery
The design of the Compaq Presario CQ57's case is almost an exact copy of the HP 630 and HP 635 models with only few changes. The notebooks can only be told apart by their slightly different colors. Our test sample shows up in a somewhat boring black plastic coat that could have been pepped up a bit by the one or other design feature. Rounded edges and the lack of high-gloss elements make it clear that the manufacturer has primarily focused on functionality in design. Acer 5742-372G25Mn battery
The flaws in case stability that were noticed in the review of the HP 635 seem to have been partly eliminated. The chassis resists even higher pressure without warping excessively or emitting a creaking noise. The 2.5 kilogram notebook even makes a good impression in the usual problem areas, like over the DVD drive cover.
Acer 5742-373G32Mn battery The display still gives reason for complaint. Its torsional stiffness could be better; both the bezel as well as the back can partly be twisted significantly. Two tightly pulled hinges connect the lid firmly to the base unit and convey a high quality impression. However, they can't completely prevent the lid from teetering in cases of vibrations. It's regrettably not possible to open the device with only one hand.
Acer 5742-463G32Mn battery There's not much to complain about in terms of workmanship. A few gaps could be more regular, but most material transitions and case edges are manufactured smoothly and flawlessly. Seeing that the Compaq Presario CQ57 is one of the most affordable 15 inch laptops, the available features are outstanding. Even the slightly more expensive Lenovo G575 is on a comparable level.
Acer 5742-5562G50Mnss01 battery The heart of the Presario CQ57 is an E-450 Fusion APU from AMD. The energy-efficient chips from the E series are primarily conceived for small subnotebooks or nettops. However, some manufacturers also build them into affordable office models of bigger device categories.
The E-450, clocked with 1.65 GHz, replaces its somewhat weaker precursor, E-350, and has a TDP of only 18 watts. The underlying Bobcat architecture has been optimized particularly for the lowest possible power consumption as well as a small chip area. Consequently, only a very limited performance is available despite two computing cores.
Acer 5742-7013 battery The feature set is limited to AMDs visualization technology, AMD-V, and the instruction set, SSE (1, 2, 3, 3S, 4A) and is thus a bit outdated. In contrast to Intel's Sandy Bridge architecture, the latest AVX instructions can't be executed.
As in all models of the Fusion range, the E-450 has an integrated DirectX 11 capable graphics unit, known as Radeon HD 6320. It has a remarkable performance for ULV relations in consideration of 80 shaders (VLIW5) at a clock of 508 MHz. It can even be increased up to 600 MHz in Turbo mode. The biggest limiting factor is only the 64 bit wide memory interface. A second memory channel isn't supported. Acer 5742-7159 battery
The built-in 4 gigabyte module comes from Nanya and runs on the maximum possible clock rate of 666 MHz / DDR3 1333. The memory can be upgraded from 4 to 8 gigabytes via a second slot when required. The buyer gets a surprisingly big, 500 GB hard disk for data storage.
Acer 5742-7399 battery The E-450's processor performance is very modest. We only achieved 1173 points in Cinebench R10's single thread test in the 64 bit version. That is also far below the average for cheap office devices. The Pentium P6200 in the HP 630 achieved a 2.5 time better result with 2987 points. This power ratio is confirmed in the multi thread test, where the Presario CQ57 finishes with 2198 points. The E-450 places even itself just above the Intel Atom processor, N570, in Cinebench R11.5 with 0.62 points. The increased clock of 50 MHz is hardly noticeable in our benchmarks compared to the E-350.
Acer 5742-7906 battery The determined performance deficit, in comparison to the Pentium processors of the Arrandale or Sandy Bridge generation, can partly be ascribed to the low TDP of only 18 watts. Consequently, the E-450 can also be installed in small subnotebooks with a screen size of 11 inches or more. This isn't possible with bigger CPUs with a TDP of 35 watts.
The built-in Samsung Spinpoint M8 is a conventional 2.5 inch hard disk with a memory capacity of 500 gigabytes, 5400 rpm and an 8 MB cache. Only one disk is installed due to its particularly high data density. That should ensure good transmission rates. Acer 5742-7908 battery
And in fact: We measure excellent read rates of up to 108.7 MB/s in the hard disk benchmark, HDTune. The average rate of just over 80 MB/s is also impressive. In view of such results, the Lenovo contender and both the HP 630 and 635 are clearly defeated. In return, the access time of 23.6 milliseconds is a bit weaker than expected.
HP has reserved about 15 gigabytes for the recovery partition and another 4 gigabytes for a drive with so-called "HP Tools" from the total capacity. A special service menu can be opened with the latter by pressing a button. This service menu includes various diagnose functions and other tools. Acer 5742G battery
We use PCMark from the developer Futuremark to determine the synthetic application performance. The Presario CQ57 can surpass the Lenovo G575 by about 5% with 2471 points in the Vantage version, which is mainly due to the somewhat faster APU in the HP notebook. Thus, the E-450 is a lot faster than netbooks based on Intel's Atom (Eee PC R051PX: 1742 points), but also lags just as evidently behind other office devices with a cheap Sandy Bridge CPU (HP 630: 3598 points). It looks similar in PCMark 7 where a score of 891 points was achieved. Acer 5742Z battery
The processor's limited capacity is the notebook's biggest shortcoming. No matter if surfing, executing installations or starting programs: Compared to devices with faster CPUs, such as the Pentium P6200, delays are not only measurable but also noticeable. In order to play high definition trailers in 1080p smoothly, a corresponding codec and player are needed so that the integrated UVD3 video processor can take over the decoding. Acer 5742Z-4693 battery
Office programs are the only applications that can be used without restrictions. Complicated picture or video editing overburden the E-450's reserves and should preferably be performed on stronger hardware. Delays also have to be reckoned with during multitasking.
Our first benchmark is the building strategy game, Anno 2070, released at the end of 2011. We measure the performance in the intro sequence of the demo version's first mission. It gives a good indication about the average performance in the later course of the game. 1024x768 pixels and low details are the only setting that achieves almost playable frame rates of 27.8 fps. Acer 5742ZG battery
It looks the same with the soccer game, Fifa 12. We have to use the lowest detail level and 800x600 pixels to render a slightly jerky 29 fps in a running game. The frame rates can even drop a lot more in replays under certain circumstances.
The last game we assess by using the built-in benchmark is the rally simulation, Dirt 3. As before, we also had to limit our demands on the image quality to a minimum so that we ultimately achieve 25.9 fps in 800x600 pixels and very low details. Acer 5744 battery
The E-450 is thus only suitable for current games to an extent. More often than not, the low processor performance is limiting so that even a reduction of the resolution partly doesn't enable unrestricted playability. However, comparable notebooks like the HP 630 with Intel's P6200 do even worse. First the graphics unit from Sandy Bridge can outdo the small Fusion APU.
Acer 5744G battery We've seen the low power consumption of AMD's E series in previously tested notebooks, such as the Lenovo G575. The Presario CQ57 isn't any different here and is content with low 7.3 to 10.4 watts in idle. The higher rate is especially significant for practical use. It is determined with an enabled WLAN connection and maximum screen brightness. HP's 630 with a Pentium P6200 processor consumed a bit more, whereby Intel's latest Sandy Bridge generation is on a par in this field.
Acer 5744Z battery The power consumption increases to 22.8 watts in 3DMark 06 and its peak is 28 watts in our stress test. Both rates are excellent and on a par with other ULV processors that have a similar TDP. Only the HP 635 is a bit better with a maximum of 20 watts, but it is equipped with the E-240 single core CPU.
The manufacturer delivers the notebook with a compact 65 watt power adapter, which almost seems too big in view of the low power consumption. Therefore, it's no problem to recharge the battery even during full load use.
Acer 5760 battery test sample owes its remarkable runtimes to the lower power consumption. Even if the 47 Wh battery isn't particularly big, the Presario CQ57 manages far more than 7 hours away from an outlet in idle. Reading a text document is simulated in the BatteryEater Reader's test. Here, WLAN is disabled and the maximum energy saving options are selected.
In practical use, the runtime is just as generous with 5 hours of surfing (screen brightness: 150 cd/m2). Movies can be played via the built-in DVD drive for almost 4 hours.
Acer 5760G battery The battery is drained after about 2 hours when we enable "High Performance" in Windows' energy savings options and start BatteryEater's Classic test. Like in the other measurements, HP gives up a somewhat longer battery life because the notebook automatically shuts down at a charge level of 9 percent at the latest. In return, the battery's life expectation is increased because frequent deep discharging can damage the lithium ion battery permanently.
Acer 6495 battery We can conclude the verdict for HP's Compaq Presario CQ57 with the title of a bestseller from Johannes Mario Simmel - "It Doesn't Always Have to be Caviar". The affordable entry level device can score in many aspects that are frivolously wasted by other, frequently much more expensive notebooks, though it has a few weaknesses.
We'll start with the good workmanship: The case, known from other HP models, convinces with high stability, which only could be improved a bit in terms of the display. The keyboard's good typing experience and the touchpad's accuracy also deserve praise. Acer 6495G battery
The Fusion APU E-450 from AMD is a curse and a blessing at the same time. The low power consumption of only 18 watts TDP is reflected in long battery runtimes and minimum heat development. Moreover, a few games can be rendered smoothly thanks to a comparatively strong graphics unit. The CPU's performance deficit is all the more vast and even noticeable in routine use compared to Intel's Pentium processors.
Acer 6495T battery Thus, the Presario CQ57 would be ideal as an affordable office device with multimedia qualities that can occasionally be used remote from an outlet. Our overall rating of 76 percent may seem low, but considering the price of less than €330 the buyer gets impressive value for his money. Faster and better equipped notebooks, such as the HP 630, meanwhile also available with Sandy Bridge processors, cost a lot more with starting about €400.
Review HP Pavilion dv7-6b02eg Notebook
Acer 6495TG battery High performance components and moderate power consumption can't be fused? They can when the laptop - as in this case - is equipped with graphics switching. 14-22 watts in idle (HD Graphics 3000) are absolutely acceptable for a multimedia notebook. A maximum of 84 watts during load (Radeon HD 6770M) is also acceptable. The Pavilion dv7-6101eg consumed a bit less power not least due to the energy-efficient dual core CPU and the screen's lower brightness in the test.
Acer 6595 battery The battery life is still impressive in idle. We determined good 5.5 hours with minimum brightness and disabled AMD graphics card in the BatteryEater Reader's test. It's also possible to surf on the Internet for quite a while. The dv7-6b02eg managed almost four hours with a screen brightness of 150 cd/m2 (diverse mix of videos and normal websites).
A runtime of about 2.5 hours can be reckoned with when the brightness is set to maximum and a DVD movie is played. In return, one hour is possible during higher load and enabled Radeon graphics card. Acer 6595G battery
HP sends an elegant, well-equipped and, to the largest extent, well-designed multimedia notebook into the race with the Pavilion dv7-6b02eg. €1300 looks like quite a lot at first glance, but there's a lot of hardware under the hood. Eight GB of DDR RAM, a fast quad core processor with up to 3.1 GHz and a BluRay burner equip the user adequately for the future. The built-in solid state drive is another selling point: Windows responds extremely fast and booting is agreeably short. Acer 6595T battery
Although AMD's Radeon HD 6770M frequently has problems with the Full HD resolution, the graphics card is well in line with the other components. All media can be enjoyed due to the high-end screen. The device can be used outdoors marvelously thanks to its screen's matt surface and the great luminosity. Talking about matt: The silver case scores with good workmanship and fairly low smudge sensitivity. Acer 6595TG battery
HP could make improvements in connectivity (no eSATA, FireWire or ExpressCard) and noise development. Like many other devices, the notebook is very perceptible during load. A few more fan speed levels wouldn't have hurt. Some buyers will likely also be annoyed by the somewhat spongy keys.
Acer 7340 battery However, HP hardly slips up anywhere on total. The Pavilion dv7-6b02eg belongs to the multimedia elite right beside the MacBook Pro 17, Dell XPS 17 and Asus N75SF. The latter device should be considered if value is put on good speaker sound.
|Thursday, October 4th, 2012|
Review Samsung 530U3B-A01DE Notebook
"Ultrabook" was the keyword for many notebook manufacturers at the last CeBit in Hanover. The new device class brings a breath of fresh air to the notebook market, and almost every manufacturer is trying to establish itself in the innovative category. Fujitsu LifeBook A530 Battery Samsung's Series 5 currently has two models that meet Intel's criteria on an ultrabook. The notebooks have a 13.3 inch, matt screen. Unlike most ultrabooks, they aren't equipped with a big SSD. Instead, they have a small 16 GB flash memory (Express Cache) in combination with a 500 GB HDD at a speed of 5400 revolutions per minute. The ultrabook has a slim height of 17.6 mm and roughly weighs 1450 grams. Thus, nothing stands in the way of using the Samsung ultrabook on the move. Fujitsu LifeBook A531 Battery
The model 530U3B is available in the versions A01 and A02. The difference between both models is only that the version A01 is configured with an Intel Core i5-2467M (1.6 GHz) and has a 4 GB DDR3 working memory. The more expensive A02 model has an 8 GB DDR3 working memory and the somewhat faster Intel Core i7-2637M (1.7 GHz) CPU. As to the graphics card, both models use the processor integrated Intel HD Graphics 3000. Fujitsu LifeBook A531/D Battery
We summarized the results of the slim and light Samsung 530U3B's performance in the following review. In this review, we will limit ourselves to the version 530U3B-A01 that was sold at a street price of less than EUR 750 at the time of the testing.
The ultrabook of Samsung's Series 5 appears in elegant, silver looks. Samsung relies on aluminum for its notebook, whereas fiber glass is used for the bottom. The maximum height of just only 17.6 mm, as well as the weight of roughly 1.45 kilograms is rather low. However, other current ultrabooks, such as the Toshiba Portégé Z830 that only weighs 1.1 kilograms, can beat this. Fujitsu LifeBook A532 Battery
But what about the case's stability? The case can be twisted to a part and also allows stronger denting selectively. This is noticed especially in the area above the keyboard and below the display hinges. The surface here yields considerably under pressure. This leads us to the next weak point: the display hinges. They are made of a big, elongated element. However, it only does its job unsatisfactorily in the case of our test device. The screen teeters extremely after adjustments. This can lead to restrictions during mobile use in cases of jerking movements, like on the bus or train. Fujitsu Lifebook A6210 Battery
The bottom only allows accessing the working memory and the installed 500 GB hard disk. The battery is unfortunately built-in permanently so that it's impossible for the normal user to replace it on his own devices.
Although other ultrabooks, such as the Asus Zenbook UX31 or the ultrabook ancestor Apple MacBook Air, have a higher stability due to the aluminum unibody design, there is no need for worries about the Samsung 530U3B. Basically, it's only the display hinge that leaves a slightly bittersweet aftertaste. Fujitsu LifeBook AH530 Battery
Intel's Core i5-2467M is used in our Samsung 530U3B test device. It is an ultra low voltage (ULV) processor. The base rate of the CPU, comprised of two cores, is a fairly low 1.6 GHz. The model based on the Sandy Bridge architecture can increase the clock up to 2.3 GHz for a short time thanks to Turbo Boost. Four threads can be processed at the same time due to Hyper Threading. The chip manufacturer, Intel, specifies a thermal design power (TDP) of 17 watts.
Fujitsu LifeBook AH531 Battery The Intel HD Graphics 3000 solution is integrated in the processor. The integrated chip supports DirectX 10 and is designed for basic graphic calculations. The 13.3 inch ultrabook also has a 4096 MB DDR3-SDRAM (1333 MHz) working memory available. The Hitachi HTS545050A7E380 is installed as the hard disk and has a capacity of around 500 GB. The HDD spins with 5400 revolutions per minute. A 16 GB flash memory is installed for faster booting. The following benchmarks show the system's performance in detail. Fujitsu LifeBook AH532 Battery
As usual, we tested the installed dual core processor, Intel Core i5 2467M, with the benchmark software, Cinebench. It suffices for 2829 points in Cinebench R10 (single 32bit). Thus, the notebook is within the expected range for this CPU. Apple's subnotebook, Macbook Air 11, has a slight lead with 2911 points with the same CPU. The clock increased to approximately 2 GHz via Turbo Boost, whereby the CPU could theoretically manage 2.3 GHz with Turbo Boost. Fujitsu LifeBook AH550 Battery
We also analyzed the processor's performance with the newer Cinebench R11.5 version. The result is a bit weaker compared to other notebooks with the same CPU. Overall, the notebook places itself in the lower midfield with its processor performance.
We analyzed the system performance with the benchmarks, PCMark Vantage and PCMark 7 from Futuremark. The ultrabook achieved 4585 points in the older benchmark PCMark Vantage. For comparison: The ultrabook Acer Aspire S3-951-6646 also with a 13.3 inch screen managed 4909 points with the same CPU and GPU. The Samsung 530U3B achieved 1951 points in the newer PCMark 7 and has the lead on the Acer ultrabook by insignificant 9 points. Fujitsu LifeBook E780 Battery
An ultrabook with an installed SSD as the main memory has a much higher system performance. Dell sets an example with its XPS 13 model. The ultrabook achieves about 3823 points in the PCMark 7 benchmark with the slightly faster Intel Core i7 2637M (1.7 GHz) processor as well as a 256 GB SSD and thus has a score twice as high as our test device.
An SSD not only has a positive effect on the benchmark test. Daily tasks seem to be managed a lot faster. Programs and large files are opened much faster. The SSD cache installed in the Samsung has advantages over the sole use of a conventional hard disk, but it can't keep up with a full-fledged SSD. Fujitsu LifeBook E8410 Battery
Samsung uses both a hard disk and an SSD cache in its ultrabook 530U3B. It comes from the memory manufacturer SanDisk and has a capacity of 16 GB. It is supposed to shorten the boot time of the operating system. However, the user can't use the SSD cache as a memory option. Besides that, the notebook manufacturer also installs a conventional HDD. It comes from Hitachi and has a gross capacity of 500 GB. Fujitsu Lifebook E8420E Battery The hard disk with the product name HTS545050A7E380 manages 5400 revolutions per minute and thus doesn't belong to the fastest memory units. In the test, the hard disk achieved an average transfer rate of poor 66.7 MB/s in HDTune. A full-fledged SSD, like in the ultrabook Dell XPS 13, would be considerably faster.
We don't expect a high 3D performance from the integrated Intel HD Graphics 3000. Nevertheless, we tested its performance with the newest 3DMark benchmarks. We had to abstain from using 3DMark 11, since the graphics chip only supports DirectX 10 (DirectX 11 would have been required). The Intel HD Graphics 3000 achieved the expected 3036 points in 3DMark 06. Fujitsu LifeBook N7010 Battery With a score of 3817, the equally slim MacBook Air manages quite a bit more with the same CPU and GPU. It was enough for 1439 points in 3DMark Vantage with our test model and Samsung's ultrabook is in the expected range of our benchmark database again.
Thus, great computing feats can't be expected from the graphics chip. Computer game fans won't have much fun with the ultrabook. Although graphically undemanding games, such as Fifa 12, run on the 13.3 incher with modified graphics settings, Intel's HD Graphics 3000 can't deal with higher requirements. More information about which games run on which notebook graphics cards can be found in our database. Fujitsu LifeBook NH570 Battery
Besides the battery itself, the power consumption is decisive for the runtime without the power adapter. The ultrabook consumes between 8.6 up to 12.9 watts in Office use. Other ultrabooks, such as the Dell XPS 13 or the HP Folio 13, consume less power when idling with 6 watts up to a maximum of 9.7 watts (Dell) respectively 8.9 watts (HP) compared to our test device.
The power consumption increases during load. We measured a peak value of 36.5 watts, which is still good.
Fujitsu-siemens CELSIUS H250 Battery Samsung promises a battery runtime of over 6 hours for its 13.3 inch ultrabook. The notebook manufacturer equips its product with a 4 cell lithium ion battery for this purpose. The battery capacity is specified with 46 Wh. We tested the battery life in different scenarios.
For the first test, we enabled the energy savings mode and disabled both wifi and Bluetooth. Additionally, we set the brightness to the lowest level. We determined the maximum battery runtime with BatteryEater's Reader's test. The result was a bit surprising. The test first came to an end after 7 hours and 56 minutes. The HP Ultrabook Folio 13 ultrabook managed a comparatively remarkable 9 hours and 49 minutes. Fujitsu-siemens LifeBook E8410 Battery
We simulated the surfing behavior in another test. For this, we set the brightness to 150 cd/m2 and enabled wifi. A script opens a new website every 40 seconds here. The Samsung 530U3B still lasted good 6 hours and 26 minutes in this scenario.
The notebook had to prove its battery qualities in the last test. We ran BatteryEater's Classic test with the High Performance profile, enabled wifi and Bluetooth, as well as the highest brightness level. This test finished after good 2 hours and 4 minutes.
Consequently, the Samsung 530U3B is quite capable of surpassing a few interesting contenders depending on the test. For example, the equally very inexpensive Acer Aspire S3 can clearly be degraded in the practical wifi test. Fujitsu-siemens Lifebook E8420 Battery
The Samsung 530U3B could convince thoroughly in many points. The elegant and slim case doesn't belong to the lightest of its kind with a weight of 1.45 kilograms. However, the 13.3 inch screen has a high brightness, is even glare-free and thus makes the Samsung 530U3B suitable for outdoor use. Moreover, the input devices will be remembered positively.
Fujitsu CP293550-01 The ultrabook's display hinge wasn't as convincing. Also, the poor contrast and the irregular illumination of the used screen have room for improvement. The installed dual core processor, Intel Core i5 2467M, supplies more than sufficient power for Office use. The choice of an SSD cache - HDD combination doubtlessly has a very positive effect on the price (around EUR 725, current street price). Nevertheless, it can't keep up with a full-fledged SSD solution in terms of perceived speed.
Fujitsu FMVNBP146 Dell's XPS 13 enables you to work slightly faster for a bit longer. However, a glare screen was installed in this case. You are well advised with the Asus Zenbook UX31, which also has a glare screen but a first rate aluminum body as well as a high application performance. Both alternatives, however, are much more expensive than the 530U3B.
If you are looking for an even cheaper ultrabook than Samsung's 530U3B, you could take a look at the Acer Aspire S3. The ultrabook is priced below EUR 700, but compromises have to be made in workmanship and the intensely reflective screen. Fujitsu FMVNBP177
Review Samsung NP355V5C-S05DE Notebook
More than 20 different models are currently provided by Samsung under the Series 3 banner. Among these are Samsung's entry level notebooks with display sizes between 11.6 and 17.3 inches. Our reviewed model is the 355V5C with a 15.6-inch screen which is identical to the 350V5C, except that it contains an AMD processor.
Fujitsu FMVNBP178 A matte display, a high performance graphics card, and a price of about 550 Euro (~$715) make this an interesting laptop. These are the important features which are supposed to help the device stand out from the competition. Nevertheless, other manufacturers also provide comparable notebooks in this price segment. Among these are the Acer TravelMate 5760G and the Medion Akoya P6812, which however contain processors from Intel.
Fujitsu FMVNBP186 Plastic is the main material of choice for the Samsung 355V5C in order to lower costs. The display lid is clad in shiny gray plastic. While opening the notebook, the user is greeted by a matte surface. For those that don't take a liking to the gray display lid, there are also the colors blue and pink available as alternative choices. The color of the keyboard area and the palm rest also change accordingly. Regardless of this, the bottom of the notebook remains black in any case.
Fujitsu FMVNBP198 When it comes to the build, Samsung has allowed a few considerable blunders to sneak in. The sides, for example, don't have perfectly sharp edges, and the gaps between adjacent panels are not even in some places. The resistance to pressure on the other hand is reasonably good, while only the left and right sides of the keyboard can easily be dented inwards. The palm resting area on the other hand only gives way with a lot of pressure. Another positive is the optical drive, which is firm and doesn't wobble in its slot. In many cases this is an area of criticism for notebooks in this price segment. Fujitsu FMVNBP199
The display is held in place by two hinges which aren't able to prevent teetering of the display. Nevertheless, these are still too stiff to allow the display to be opened easily with one hand.
The battery is located on the bottom of the device, and is held in place by two hooks, and can be removed if required. Access to the cooling system in order to clean it is not possible with this Samsung notebook.
Fujitsu FPCBP145 The Samsung 355V5C is available in several different configurations. When it comes to the CPU, the buyer has the option of choosing between three Trinity based processors, the AMD A6-4400M, A8-4500M and the quad-core A10-4600M. For graphics processing, the graphics unit integrated into the CPU can be relied upon, or the separate AMD Radeon HD 7670M graphics card with 1 or 2 GB of DDR3 memory can be used. The RAM can be expanded up to a maximum of 8 GB and the hard drive can have a capacity of between 500 and 1000 GB. For those that would prefer to leave the processing to an Intel processor, there is also the identical Samsung 350V5C with an i5 or i7 CPU from the Ivy Bridge generation. Fujitsu FPCBP145AP Our reviewed device is equipped with the slowest of the processors from the Series, the A6-4400M and 6 GB of DDR3 RAM. Along with this, there is a 750 GB hard drive and an AMD Radeon HD 7670M graphics card with 2 GB of DDR3 memory. With these features, the reviewed device should easily be suitable for internet surfing, HD video playback, Office tasks and occasional gaming.
Fujitsu FPCBP218 The dual-core processor A6-4400M from AMD has a clock speed of 2.7 GHz when both cores are used, and can increase up to 3.2 GHz for single-thread applications. When selecting the Silent-Mode on the other hand, the power saving profile is activated, and the clock speed reduces to 1.4 GHz in order to lower the power consumption.
With the Cinebench R11.5 multi-core benchmark, the CPU already proves to be overwhelmed when compared to the Intel Pentium P6000, and falls 20% behind. The Intel Core i3-2330M meanwhile races far ahead, providing more than double the performance. Nevertheless, the maximum performance can also be counted on when battery powered. The Silent-Mode meanwhile leads to a performance reduction of 52 %. Fujitsu FPCBP218AP
When it comes to the system performance, the reviewed device is able to make a good impression. With the PCMark 7 benchmark, the 355V5C is on a par with rivals like the Medion Akoya P6812, and the Samsung 300E5A-S01 which are both equipped with an Intel Core i3-2330M processor and an Nvidia GeForce GT 520MX or GT 555M graphics card. In addition, the Acer TravelMate 5760G-2454G50Mnsk (i5-2450M & GT 630M) is also within reaching distance with a small performance advantage of 3%. The reason for these good results is the relatively good performance of the dual graphics, the fast hard disk and 6 GB of RAM. Also the perceived performance makes a good impression, and doesn't allow for prolonged waiting times. Fujitsu FPCBP219
In terms of the gaming performance, the performance of the review sample lies between a GeForce GT 630M and a GT 555M. The performance of the single HD 7670M in other test devices is only seldom exceeded and when it is, then only with high details. With a low detail setting, the frame rate is obviously limited and the dual graphics configuration lags behind the HD 7670M. This trait is hopefully the result of a driver issue which could be alleviated with an update. Fujitsu FPCBP219AP Nevertheless, games from 2011 are usually playable with medium details with the native resolution. With new and especially graphics intensive games, the settings should be set to their lowest level though, in order not to spoil the fun with juddering images. Further gaming tests for the AMD Radeon HD 7520G + HD 7670M dual graphics can be found in the GPU datasheet.
Fujitsu FPCBP220 The power consumption lies between 9.3 watts (Silent-Mode enabled) and 14.1 watts (Silent-Mode disabled) during idle state with average utilization. When fully utilized a maximum of 67.1 watts are required, which can be considered very good in light of the provided graphics performance. Switching into Silent-Mode reduces the power consumption down to 55.8 watts. The 90 watts AC adapter should be more than enough in all scenarios, and charging the battery will also still take place while the notebook is fully utilized. Fujitsu FPCBP220AP
7 hours and 5 minutes - this figure represent the maximum battery life of the Samsung 355V5C. This time was measured with the lowest brightness and disabled wireless modules. In most cases, this test result is far from reality. More genuine results are provided by tests resembling practical use, like when surfing the web via WLAN, with a normal brightness of 150 cd/m², or playing a DVD with the maximum brightness. Fujitsu FPCBP238 In the first case we determined a battery life of 3 hours and 15 minutes. The DVD playback test on the other hand led to 2 hours and 22 minutes. While these results could still be described as good for multimedia notebooks from two years ago, figures such as these are more likely to be encountered at the bottom end of the scale of contemporary notebooks. A very positive example in this case would be the Samsung 300E5A, which can be used to surf the web for more than 6 hours via WLAN. Swapping the included 48 Wh battery for a more potent alternative is also not possible with the review device. Fujitsu FPCBP238AP
All in all, Samsung has compiled a relatively comprehensive and high performance package. Anyone who can come to terms with the lower manufacturing quality and battery life could find the 355V5C to be a gaming capable multimedia notebook at an affordable price.
Those that place a high value on manufacturing quality, should take a closer look at the Acer Aspire V3-551G, although the matte display would have to be sacrificed with this choice. The Medion Akoya P6812 on the other hand also has a matte display, and also offers a high performance graphics card and Intel CPU. Fujitsu FPCBP250 The downside of this option is however the increased weight and bigger dimensions. In both the case of the Medion and the Acer Aspire V3, users will also have to come to terms with sensitive shiny surfaces. Matte throughout are the Acer TravelMate 5760G and the Samsung 300E5A. In the latter case, the expectations from the graphics card would have to be curtailed however. In addition, both of these options would also imply that a USB 3.0 interface will no longer be available.
|Tuesday, September 25th, 2012|
Review Sony Vaio VPC-EJ3D1E/W Notebook
While many competitors try to lure customers with powerful hardware and low prices, Sony offers build quality and aesthetics as primary selling points.
Sony VGP-BPS10A/B Although the E range belongs to Sony's entry-level sector, our VPC-EJ3D1E/W test model runs just shy of EUR 800 ($1015). For that, you get a Core i5-2450M with 8 GB RAM and a dedicated GeForce 410M. The icing on the cake for media lovers is a 750 GB hard drive and a BluRay drive.
If you prefer customized builds, there are a variety of options on Sony's online store. If you're on a budget, you can cut the price as low as EUR 500 ($633) by opting for a Pentium processor, less RAM, and a DVD drive instead of a BluRay. Sony VGP-BPS10A
The EJ3D1E can target a variety of markets depending on the configuration, but, HP's ProBook 4730s and Packard Bell's EasyNote LS11HR are likely competitors. Samsung's 305E7A represents AMD's Fusion range.
Goodbye dreariness: The white plastic case (also available in black) fits the Vaio like a custom-made suit and pleasantly sticks out from the crowd. Sony goes interesting ways especially in exterior design. In particular, the honeycomb texture on the display's back and wrist rest is an eye-catcher with good, solid feel. Sony VGP-BPS10B
At 3.1 kg (6.8 lbs), the Vaio isn't exactly an ultrabook. The 17 incher, with its weight and boxy appearance, is solidly in in the desktop replacement category. It may not be light, but it is sturdy. There's a little flex above the BR drive with strong pressure, but the case is otherwise impervious to our prodding. Workmanship is very good - no rough edges or loose seams, and the whole machine feels tight and looks sharp. Sony VGP-BPS10/S
The sole chink in the machine's armor is its screen. The hinges are tight enough that opening the lid requires both hands. Lift the lid one-handed, and the bottom comes with it. On the bright side, the hinges feel solid and we imagine they'll last a good long time.
Overall, the VPC-EJ3D1E/W proves to be a well manufactured device and even slightly surpasses the expectations placed on this price range. HP's ProBook 4730s ranks a bit higher with brushed metal surfaces and more accommodating hinges, among other things. Sony VGP-BPL10
Intel's new Ivy Bridge range was unleashed onto the market a few days ago - are the Vaio and its Sandy Bridge Core i5-2450M now old hat?
Not at all. First, Ivy's performance increase is mostly limited to graphics and second, the introduction of the dual core models will probably still take a while. The 2450M is still a speedy midrange chip with a clock rate of 2.5 GHz (up to 3.1 GHz via Turbo Boost 2.0). Both computing cores process up to 2 threads at the same time thanks to SMT, which ensures good performance in highly parallel applications. The instruction set is also state-of-the-art due to AVX and AES-NI support. Sony VGP-BPS15/S
Sony relies on a GeForce 410M rather than the processor-integrated HD Graphics 3000. Just like the popular GT 520M, the 410M is based on the Fermi architecture's GF119 chip. This low-end chip isn't much of an upgrade over the HD3000, with 1 GB DDR3 VRAM, only 48 Shader units and a core clock of 575 MHz. Unlike the Intel GPU, it supports DirectX 11, DirectCompute, OpenCL and CUDA. Nvidia's Optimus technology for dynamic graphics switching is not implemented. We will look at how that affects the battery life and power consumption a bit later. Sony VGP-BPL14/S
Apart from the 100 MHz higher clock frequency, the Core i5-2450M corresponds exactly to the older i5-2430M. The difference is imperceptible - in fact, the 2450M only wins by a few percentage points with a score of 2.77 in Cinebench R11.5 (64bit). The CPU doesn't achieve a much higher score than the 100 MHz slower i5-2410M in HP's ProBook 4730s either. Samsung's 305E7A, with an AMD A6-3420M quad core processor, lags behind by over 40%. The difference is even greater in Cinebench R10's single thread test, where the Intel models achieve over twice as many points. Sony VGP-BPS14/S
As the good benchmark results show, the i5-2450M exploits its maximum possible Turbo Boost range completely. No performance limitations are noticed on battery power either.
The 750 GB hard disk (HTS547575A9E384) comes from Hitachi and chugs along at a sluggish 5400 rpm with 8 MB cache. Thanks to high platter density, the average transfer rate of 72.3 MB/s in the HDTune benchmark is quite acceptable. The access speed of 20.7 milliseconds is on the slow side. Booting Windows 7 Home Premium 64bit takes approximately 35 seconds. Sony VGP-BPS15/B
An SSD would obvious be a huge performance boon, but to keep pricing at current levels Sony would have to aim for a low-end 128 GB model - not enough storage for media-happy users. A cache solution, as in Samsung's 700Z3A, might be a happy medium but the Vaio can only be configured with various hard disks between 320 and 750 GB (all 5400 rpm). Of course, you can always upgrade the drive yourself... Sony VGP-BPS21A
The fast processor ensures a good score in our system benchmarks. 6622 points in PCMark Vantage and 1878 points in PCMark 7 are on par with Packard Bell's EasyNote LS11HR and HP's ProBook 4730s, which isn't surprising in view of the similar hardware. The graphics card doesn't have much impact in these tests. The inexpensive Samsung 305E7A is again thwarted by its inferior AMD CPU. Sony VGP-BPS21
Apart from occasional, usually hard disk-related latencies when opening or installing programs, the notebook is very fast and responsive. Only a few applications bring our test device to its performance limits. An even faster quad core CPU from the i7 range would only speed up demanding tasks such as video encoding.
Sony VGP-BPS21/S Even if the GeForce 410M's raw performance is marginally better than the IGP's, Nvidia's excellent driver support is a marked advantage over HD 3000.
The differences are relatively low in Anno 2070. The 410M surpasses comparable devices with an Intel GPU by 10 to 20 percent - usually not enough to be able to increase quality/resolution settings. The game only runs smoothly on the lowest settings and 1024 x 768 resolution (see the following chart). The same is true for the action RPG Deus Ex: Human Revolution - the 410M is only marginally faster than HD 3000. Sony VGP-BPS21A/B
The GeForce 410M copes much better with the off road racing game Dirt 3. We measured a playable refresh rate of nearly 28 fps on the medium detail level and XGA resolution. The HD 3000 only manages about 22 fps. A similarly fast AMD model would be the Radeon HD 6450M. Sony VGP-BPS21B
The 410M's best performance is in Fifa 12. The soccer simulation is rendered smoothly even at maximum settings and the screen's native resolution. Many notebooks with Intel's GPU drop below 30 fps at 1366 x 768 pixels.
As mentioned, Sony does not implement Nvidia's Optimus technology. The GeForce 410M is always active and thus has a negative impact on power consumption. We recorded consumption between 10.8 and 16.5 watts at idle, approximately 2 to 3 watts more than Packard Bell's LS11HR with an Intel GPU. That doesn't sound like a big difference, but every additional watt reduces the battery runtime - we will see to what degree in a moment. Sony PCGA-BPS21/S
While 45.1 watts in 3DMark 06 can still be deemed acceptable, the maximum consumption of 75.6 watts is inappropriate for the limited 3D performance. The new 28 nanometer midrange, such as the GeForce GT 640, should allow significantly better performance without higher power consumption. The 90 watt power adapter is sufficient, at least.
Sony VGP-BPS21/B With high power consumption and only a compact 44 Whr battery, we aren't optimistic on the Vaio's battery life prospects.
It lasts 4 hours and 18 minutes in BatteryEater's Reader's test. This test is performed with enabled energy savings mode, disabled wifi and in minimum screen brightness. However, this result is a best-case scenario not likely to happen in the real world. Toshiba PA3921U-1BRS
When wifi is enabled, the brightness adjusted (level 15/16, 157 cd/m2) and we surf the Internet, the runtime drops to a mere 2 hours and 27 minutes. Most contenders last at least half an hour longer; 5 hours would be possible with Optimus and a bigger battery.
The Vaio has to go back to the mains after 71 minutes of load at the latest, simulated with BatteryEater's Classic test (high performance, wifi on, maximum brightness). It takes over three hour to fully charge the battery. Toshiba PA3395U-1BRS
With the Vaio VPC-EJ3D1E/W, Sony has a solid multimedia system. It scores with generous equipment - a BD drive, 8 GB RAM, a 750 GB HDD, but regrettably no USB 3.0 - as well as its excellent input devices. Both keyboard and touchpad are almost on par with more expensive business devices and are a strong purchase argument particularly for prolific writers. Toshiba PA3421U-1BRS
The manufacturer also did a good job with the bulky 17 incher's workmanship, even if the odd flaw is found in the case and lid stability. Once again, our biggest point of criticism is the disappointing TN screen. With poor viewing angles, contrast, brightness and high glare, it's really only suitable for indoors use out of direct light.
Toshiba PA3928U-1BRS The Core i5-2450M is soon to be replaced by Ivy Bridge, but the Vaio nevertheless provides good performance in almost all current applications. We have our doubts about the GeForce 410M - it increases power consumption and reduces battery life without Optimus support for a relatively minor performance boost.
The notebook's target market is easily defined: customers who want an elegant desktop replacement for Office, multimedia and older 3D games. The VPC-EJ3D1E/W for just under EUR 800 is a good choice. Toshiba PABAS248 In this category, Sony competes with HP's ProBook 4730s, which is manufactured a bit better but is not as well equipped. We would sooner recommend Packard Bell's EasyNote LS11HR for serious gamers. It is a lot more suitable for graphically demanding apps with its Radeon HD 7670M.
|Friday, September 7th, 2012|
|Lenovo FRU 42T4937
Review Update Samsung 900X4C-A04DE Notebook
Just a month ago (June 2012), we put the predecessor of our test candidate through its paces. The Series 9 900X4B-A01DE - a model which features identical looks, the same chassis, and 15" display - wasn't exactly a bargain at 1,999 Euros but it was pretty close to being perfect. Asus A31-1015 Only the display raised some eyebrows: narrow viewing angles and a greyish screen - not something we would have expected in Samsung's top-of-the-line model.
This time around we are testing the Series 9 900X4C-A04DE - equipped with Intel's newest processor (part of the Ivy Bridge generation) and HD Graphics 4000. Can the 15" laptop improve upon the already pretty impressive 7 hours of battery life?
Asus AL31-1015 What we were eager to find out: did the manufacturer make changes to the display? The short answer (as we already hinted above) is no. To determine if the 900X4C manages to convince nonetheless, we conducted this test-update.
Several features are carry-overs from the predecessor Series 9 900X4B-A01DE - please check that test report for our opinion on the chassis, ports, features, input devices, and speakers. Asus A32-1015
Measurements with the laptop on external power (battery at 100%, not charging) revealed a pretty modest power consumption. During idle, we measured 7.2 watts (silent mode). This is due to the power efficiency of the Ivy Bridge system. Running the LED panel at its brightest and switching the power plan to "maximum performance" increased the power consumption to 12.6 watts maximum. Asus PL32-1015 The Sandy Bridge predecessor 900X4B was also efficient at 6.9 and 12.9 watts, respectively.
During load, the power consumption decreased a bit - a result of the shrunken die-size of the Ivy Bridge processor. When we subjected the i5 3317U to the processor stress-test, we measured 35 watts. Adding 3D-Benchmark (Furmark) increases power consumption to 43 watts (stress-test, Maximum). 3DMark06 on its own consumes 41 watts. We had measured 42 and 39.8 watts during our test of the 900X4B. Asus A32-K53
Twelve hours sounds like an unbelievably long run time. We reached the 711 minutes only with the laptop idling, the display on the lowest brightness setting, and WLAN/Bluethooth deactivated. The more realistic WLAN-test resulted in a runtime of 9:40 hours. This is two hours thirty minutes longer than the Sandy Bridge 900X4B.
Asus A42-K54 Playing movies from the hard drive, the laptop lasted seven hours. We used a low-res AVI movie and Windows Media Player; wireless modules and keyboard backlight were turned off. Before running on battery again, the laptop requires a charge time of at least three hours.
Samsung didn't modify the battery: the capacity of the lithium polymer energy source remains at 62 Wh (8 cells, type: AA-PBXN8AR). The increase of the battery life considering it's the same battery is pretty impressive. Asus a32-u31
The 900X4C comes equipped with an Intel Core i5-3317U (2x1.7 GHz). This processor, member of the new Ivy Bridge-generation, replaces the Intel Core i7 2637M used in the predecessor (also a dual core running at 1.7GHz); the HM75 Express Chipset replaces the HM65. The CPU is capable of adjusting the frequency between 2.6 Ghz at the upper and 1.7 Ghz at the lower end via Turbo Boost 2.0. Asus a42-u31
Since the maximum power consumption of this processors is about 17 watts (TDP), it is designated as a member of the Ultra-Low-Voltage category - suitable for Ultrabooks and Subnotebooks. Asus uses it for the Zenbook UX32VD, Apple for its MacBook Air 11 inch 2012-06 MD223D/A, and Samsung for its Series 5 Ultrabook 530U3C-A01DE.
Asus A42-G73 Turbo Mode allows the integrated Intel HD Graphics 4000 to adjust the frequency between 350 MHz and 1.050 MHz - at least in theory, since ULV CPUs can decrease this range. Our test notebook featured the SanDisk U100 SSD (128GB) instead of the previously used Samsung SSD 830 Series (256GB).
Asus 07G016DH1875 So what kind of performance difference between our Ivy Bridge i5 test system and its predecessor (900X4B - equipped with i7) are we talking about? We use Cinebench to get the answer: R11.5 CPU Multi 64 Bit Test shows an increase of six percent (2.4 points) compared to the Sandy Bridge Core i7-2637M (i.e. Dell XPS 13). The same i7-CPU in the Samsung 900X4B-A01DE (predecessor) manages to be nine percent slower.
Asus 70-NY81B1000Z Cinebench R11.5 Single Test (1.07 points) taxes Turbo Boost mode, since only one core is utilized. The result is identical to the i7-2637M and mirrors other 3317U-equipped systems like the Apple MacBook Air 11 inch 2012-06 MD223D/A or the Lenovo IdeaPad U310.
Running on battery decreases performance: the R11.5 Multi Test shows 1.69, the Single Test 0.7 points. The reason: Turbo Boost is unavailable in battery mode so the frequency stays at 1.7 GHz instead of the 2.4 GHz the CPU reaches while on external power.
Asus 90-NY81B1000Y Overall, the jump from Sandy-Bridge i7 to Ivy-Bridge i5 is positive and doesn't come with a performance degradation. A decision to buy, however, should not be based on this difference alone, since it's hardly going to be noticeable in every day use.
ASUS 07G016DH1875 System Performance measured using PCMark Vantage (2008) and PCMark 7 (2011) looks good overall. The scores are not quite as high as we would have expected from a laptop equipped with SSD. The Vantage Test in particular reacts very positively to SSDs and scores can reach 13-20K points. Our test laptop reached 8.171 points - a solid performance that is equaled by other systems using a 7200 RPM hard disk (for example HP Envy 14 Spectre B1J92EA).
ASUS 70-NY81B1000Z The 900X4B, featuring a Samsung SSD 830, managed 12.500 points (+53%). The HDD Sub-Scores of the Vantage-tests show 11.427 and 42.391, respectively. Is the Samsung SSD 830 series used in the 900X4B not only bigger, but significantly faster? That seems to be the case, since the 128 GB SSD 830 used in the 900X3B (13.3") reached a very high 41.603 points.
ASUS 90-NY81B1000Y PCMark 7 confirms the results with 3.488 points and a HDD score of 3.465 points. SSDs make less of a difference in this test - something that the overall score of the predecessors (3775 points) clearly shows. The HDD score shows how comparatively weak the Sandisk U100 is: the SSD830 used in the 900X4B reaches 5155 points. The ADATA XM11 (128GB), used in the ASUS Zenbook Prime UX31A, is marginally better at 5245 points.
ASUS G73-52 So what are the details of the Sandisk U100 performance? CrystalDiskMark 3.0 und AS SSD show a very high 451 MB/s reading large blocks of data. HD Tune shows somewhat lower performance - but still fairly high compared to other HD Tune results. Read performance in the above case is only marginally lower than what the 830 series SSD shows (900X4B: 459 MB/s).
Asus A42-G75 The significant difference and disadvantage of the Sandisk U100 reveals itself when reading and writing small and dispersed blocks of data. The model only manages 28 and 7 MB/s, respectively (read/write 4K QD32), whereas the 830 Series delivers 296 (+39%) and 107 MB/s (+327%). The 512K-Test showes the (now discontinued) 830 to be a staggering 821% faster than the U100.
Lenovo 0A36286 We could continue the comparison - but with the insight we've gained from our three benchmarks tests, we know one thing for sure: the switch to Sandisk allows Samsung to come in at a better price point - at the expense of performance. Those who want to play it safe, should try to find the (still available) Sandy Bridge model. The faster-performing Samsung SSD 830 is definitely going to make up for the marginally better Ivy Bridge processor.
Lenovo 42T4877 We we were somewhat surprised: while in Turbo Mode, the HD 4000 of ULV processor adjusts happily between 350 MHz on the lower and 1.050 MHz on the upper end and can keep up with older mid-range graphics cards like the Geforce GT 330M. 3DMark2006 (5.294 points) confirms it, as does the game Risen (26.5 FPS in medium).
Lenovo 42T4878 The HD Graphics 4000 does not get throttled like the processor - so full power is available even on battery. Risen (using medium settings) remains fully playable at 27 FPS. The older HD Graphics 3000 in the predecessor 900X4B could not keep up with this performance. We managed 16 to 18 FPS (Medium) playing Risen and 4600 points in 3DMark2006. The Radeon HD 6520G (AMD Llano) managed 3300 points.
Lenovo 0A36279 The integrated graphics card is definitely usable for a game here and there at reduced resolution and deactivated anti-aliasing (low to medium details). Those looking to play using the IGP, take a look at the in-depth test of the HD 4000. The Samsung 900X4B is definitely not designed for serious gaming; potential gaming-oriented buyers should base their decision on the GPU.
Lenovo ASM 42T4936 During idle, the 900X4C remains cool, one could think it's not turned on. During the stress tests (Prime95, Multi-Core), the 15" laptop heats up quite a bit (we measured 43 degrees Celsius / 109 degrees Fahrenheit). This leads to hotspots which make using the system on the lap uncomfortable. This is a worst-case scenario though - achieved during testing to check the efficiency of the cooling system. Surfing and other low-power applications keep the temperatures at an acceptable level.
Lenovo ASM 42T4938 On the positive side, the system survived the extreme test for the CPU and IGP not only without crashing, but also without throttling the CPU. Lowering the frequency of the CPU to the nominal 1.7 GHz is a preventive mechanism of the Intel Core that avoids overheating when the system can't keep the temperature low enough otherwise. That doesn't happen with the 900X4C: multi-core CPU load resulted in a constant 2.4 GHz. We never observed the (theoretically possible) single-core 2.6 GHz.
Verdict Lenovo FRU 42T4937
Samsung's Series 9 15" laptop 900X4C-A04DE sports updated components and appeals to those who are able to drop a significant amount of change. Compared to the predecessor 900X4B, the price is a bit lower at 1.500 Euro (compared to 1.700 Euro) - but some features have been cut. Instead of a Core i7 CPU the laptop now has i5 and the 256 GB SSD has been replaced by a slower 128 GB SSD.
Lenovo FRU 42T4939 Build quality, input devices, battery life, and suitability for outdoor use are clearly convincing features of the 900X4C. Samsung was able to increase the WLAN runtime to 9:40 hours - without changing the battery capacity. The reason for the longer battery life under load is the decreased consumption of the Ivy Processor (due to the die-shrink).
Lenovo 57Y6625 Unfortunately, Samsung did not modify the TN panel during this update. It is extremely bright but still plagued by low contrast. Although this doesn't decrease usability in the slightest, buyers looking for premium laptops usually also expect vivid colors.
Lenovo 57Y6626 After thorough evaluation, we gave this updated version a score that mirrors the one of the predecessor 900X4B (86%). Since we classify this to be an office-type device (no dedicated GPU) and not a Subnotebook (because of the 15" screen), this notebook (which weighs in at 1.670 grams / 3.68 lbs) does very well overall. Those wanting a light notebook with a larger screen than 13" and those planning spending lots of time using it, are well served taking a look at the Series 9 900X4C-A04DE.
|Monday, September 3rd, 2012|
|ASUS G53SX-SX017V battery
Review Samsung Series 7 Gamer 700G7C Notebook
The gaming notebook sector is a highly sought segment of the notebook market. The upper-end of this segment is currently occupied by devices from well-known manufacturers such as Alienware, Asus, and Schenker. ASUS G53JW-SZ161V battery These manufacturers are known for using high-performance hardware, generous equipment configurations, and stylish and often futuristic design elements. With the Series 7 700G7C, Samsung steps into the gaming notebook ring once again.
The Series 7 700G7C gaming notebook uses the Ivy Bridge Intel quad-core i7-3610QM processor that is often considered the entry point to the high-end CPU category. The premium Nvidia GeForce GTX 675 graphics card is capable of handling current, performance demanding games and is appropriate for a gaming notebook. While great on paper, the 16 GB system memory is more than sufficient. ASUS G53JW-XA1 battery The gaming notebook features a 17-inch 1920x1080 display which also allows the integrated Blu-Ray drive to render movies in native Full High Definition video. The 2.1 sound system features a dedicated subwoofer – a must in gaming notebooks – which makes the notebook a good all-around multimedia device.
ASUS G53JW-XN1 battery Throughout this review, we compare the Series 7 700G7C to both the sector-leading 17-inch Alienware M17x R4 and the interesting Schenker XMG P702 PRO. By comparison, the former uses a Radeon graphics card and serves as the 700G7C's direct competitor. The latter opponent can also be optionally configured to use the same Nvidia graphics card. We also compare the 700G7C to its predecessor, the Samsung Series 7 700G7A which used the AMD Radeon HD 6970M. According to the Samsung website, the 700G7C can also be configured to use a Radeon graphics solution. ASUS G53JW-XR1 battery
The gaming notebook sector is a highly sought segment of the notebook market. The upper-end of this segment is currently occupied by devices from well-known manufacturers such as Alienware, Asus, and Schenker. These manufacturers are known for using high-performance hardware, generous equipment configurations, and stylish and often futuristic design elements. With the Series 7 700G7C, Samsung steps into the gaming notebook ring once again. ASUS G53JW-XT1 battery
The Series 7 700G7C gaming notebook uses the Ivy Bridge Intel quad-core i7-3610QM processor that is often considered the entry point to the high-end CPU category. The premium Nvidia GeForce GTX 675 graphics card is capable of handling current, performance demanding games and is appropriate for a gaming notebook. ASUS G53SX-XA battery While great on paper, the 16 GB system memory is more than sufficient. The gaming notebook features a 17-inch 1920x1080 display which also allows the integrated Blu-Ray drive to render movies in native Full High Definition video. The 2.1 sound system features a dedicated subwoofer – a must in gaming notebooks – which makes the notebook a good all-around multimedia device. ASUS G53JX battery
Throughout this review, we compare the Series 7 700G7C to both the sector-leading 17-inch Alienware M17x R4 and the interesting Schenker XMG P702 PRO. By comparison, the former uses a Radeon graphics card and serves as the 700G7C's direct competitor. The latter opponent can also be optionally configured to use the same Nvidia graphics card. We also compare the 700G7C to its predecessor, the Samsung Series 7 700G7A which used the AMD Radeon HD 6970M. According to the Samsung website, the 700G7C can also be configured to use a Radeon graphics solution. ASUS G53S battery
High-performance gaming notebooks typically feature power-hungry components. For our sample Samsung 700G7C, we observed power consumption levels of between 36 and 168 Watts depending on load. ASUS G53SV battery The preceding Samsung Series 7 700G7A and Alienware M17x R4 both have power consumptions in the same range. On the other hand, the Schenker XMG P702 uses Nvidia Optimus technology to switch to the more efficient integrated graphics card in idle and low demand applications. The Schenker notebook consumed only half as much as the Samsung notebook while idle and this lower consumption was reflected in maximum battery runtime.
The Series 7 700G7C includes a power supply with a rated output of just under 200 Watts and is clearly sufficient for our notebook's maximum power consumption. ASUS G53SW battery
In order to offset the aforementioned power consumption, the Series 7 700G7C uses a generous eight-cell lithium ion battery with a rated capacity of 89 Wh. In theory, this fairly high-capacity battery should provide decent battery runtimes. In order to compare the Samsung notebook with its competitors, we used the Battery Eater testing program. ASUS G53SW-A1 battery
To simulate a minimum runtime, the Classic test runs a high demand simulation using the highest possible performance settings. The 700G7C lasted an acceptable one and a half hours in the most powerful "Gaming Mode" setting. Other comparable devices such as the preceding 700G7A and the Alienware M17x R4 achieved just under an hour of battery operation. ASUS G53SW-BST6 battery
In our Wi-Fi surfing test, we used the "Balanced Mode" profile and medium screen brightness for 2 hours and 24 minutes before running out of power. This result is longer than the predecessor which only managed one and a half hours in the same test. Even without Optimus, the Alienware notebook managed four hours in this test. ASUS G53SW-IX089V battery
Using the optical drive, we played a movie and the battery was drained in two hours. There was no observable runtime difference between DVD and Blu-Ray media.
To simulate maximum battery runtime, we used the Battery Eater Reader's test and observed a runtime of only 2 hours and 45 minutes.
ASUS G53SW-IX097Z battery The Series 7 700G7C retains the connectivity options of the previous 700G7A. The notebook lacks fancy features but provides the typical two USB 3.0 ports on the left and two USB 2.0 ports on the right. These ports are placed sufficiently far apart to allow larger plugs and devices to be used simultaneously. We found the two audio jacks for microphone and line/audio out to be a bit modest as other gaming notebooks such as the Alienware M17x R4 and Schenker XMG P702 PRO feature four jacks to enable the direct use of a multi-speaker surround environment without the use of an external receiver. ASUS G53SW-XA1 battery While the DisplayPort on the left is a nice addition, eSATA, Firewire, and ExpressCard would have been reasonable additions considering the notebook's price but are unavailable.
The built-in webcam in the display bezel has a 2.0 megapixel resolution, sufficient for video telephony but also not particularly generous. The webcam, which has a blue LED indicating activity, worked flawlessly and smoothly in our Skype test call. Nonetheless, webcams do not offer outstanding pictures and our notebook's camera is no exception. While the webcam can take 1920x1080 snapshots using the included YouCam software, this is hardly a standard of quality. ASUS G53SW-XA2 battery
The Series 7 700G7C makes use of the Intel Centrino Advanced-N 6235 wireless module to provide all Wi-Fi standards – 802.11a/b/g/n – with a maximum communication speed of 300 Mbit/s. The same module also provides Bluetooth 4.0, the latest version of Bluetooth, which is more energy efficient than previous versions. This advantage, however, is more relevant for smartphones and tablets than for energy-hungry gaming notebooks. ASUS G53SW-XN1 battery
The Series 7 gaming notebook only includes minimal accessories. The notebook comes with the corresponding power supply and a recovery disc. In terms of software, the story is essentially the same. Aside from some bloatware, the notebook includes CyberLink Media Suite which provides an alternate media player as well as some media conversion capabilities. The CyberLink YouCam application is also included and allows the user to take snapshots and record video using the built-in webcam. ASUS G53SW-XR1 battery
A maintenance cover on the Series 7 700G7C's underside is held in place by one screw. This cover only grants access to the two hard disks and two of the four 4 GB memory modules. Both hard disks use rubber cases to prevent vibration and provide a secure fit in the drive slots. The other components can only be accessed by disassembling the entire base unit. ASUS G53SW-XT1 battery
Samsung's notebook is covered by a standard 24-month warranty. Warranty service includes free repair in a Samsung authorized repair shop or exchange with an equivalent successor model at Samsung's discretion. The warranty period can also be extended to 36- and 48-month durations with the latter costing an additional 99 Euro ($125 USD).
Performance ASUS G53SX battery
The Series 7 700G7C features the Intel Core i7-3610QM, which is generally considered the gateway to the realm of high-end quad-core processors, and the Nvidia GeForce GTX 675M, a high-end discrete graphics card. The 16 GB of system memory is perhaps overkill for current computational needs. All four memory banks are occupied by 4 GB modules. The storage solution features two 750 GB physical hard disks. ASUS G53SX 3D battery While solid state drives (SSD) are more often typical for high-performance notebooks, Samsung chose to use a hybrid ExpressCache solution whereby frequently used system data is stored on 8 GB of flash memory which speeds up system booting and program starts. Subjectively, the Samsung notebook woke up from a sleep state rather quickly in our tests. Nonetheless, the hybrid solution is unlikely to match the performance of even a single SSD. ASUS G53SX-A1 battery
The quad-core Intel Core i7-3610QM is a frequently used, current, upper range CPU with a good performance to price ratio. As part of the current Ivy Bridge generation, the CPU is built on a 22 nanometer process and features Intel Hyper-Threading technology which allows each core to simultaneously process two threads. The latter allows the CPU to handle eight threads simultaneously. ASUS G53SX-AH71 battery With a 2.3 GHz base clock, the CPU is capable of running at 1.2 GHz during energy-saving idle operation and up to 3.3 GHz during single-core operation using Turbo Boost. Unfortunately, Turbo Boost is unavailable on battery power and the processor clock never exceeds 2.3 GHz in this situation. As a result, demanding applications will perform better on AC power.
ASUS G53SX-DH71 battery We tested the Samsung Series 7 700G7C using the Cinebench CPU benchmarks and the notebook provided the expected good results. Our measured results were not significantly lower than those of higher-end CPUs such as the Core i7-3720QM. By comparison, the preceding Series 7 700G7A and the Schenker XMG P702 PRO we tested in April both use the Sandy Bridge Core i7-2630QM. The gap between the 700G7C's Ivy Bridge CPU and the Core i7-2630QM was more obvious as our Core i7-3610QM scored up to 25 percent higher in the rendering benchmarks. ASUS G53SX-IX122V battery
To determine overall system performance, we used the PCMark series of benchmarks. As expected, the Series 7 700G7C achieved results that were a bit higher than those of the predecessor. Nonetheless, the score was only half of those of the Alienware and Schenker options. The reason for this enormous gap is that the two competitors both use SSD storage devices which are capable of read and write speeds that are half an order of magnitude higher than those of the Samsung notebook's physical disks.ASUS G53SX-NH71 battery An SSD would make the transfer of data, system boots, and program starts much faster in typical use.
As mentioned previously, the Series 7 700G7C uses an 8 GB SSD as a system cache. While SSDs provide a significant performance gain, it is unclear whether the relatively quick program starts in the 700G7C are due to the ExpressCache or the 7200 RPM hard disk.
Gaming Performance ASUS G53SX-RH71 battery
As a gaming notebook, the primary purpose of the Samsung Series 7 700G7C is smooth gameplay. Although the graphics card does not use the latest Kepler architecture, most games are nonetheless playable using maximum graphics settings at the native Full HD resolution. We tested a few games and summarize our results below. ASUS G53SX-S1185V battery
Starcraft 2, now two years old, did not have high graphical requirements even at the time of its release. When using less-than-maximum details, the 700G7C is capable of triple digit frame rates. Using maximum settings, the game maintained a good 59 fps. Occasional stutters might be noticed during massive battles during multiplayer games. ASUS G53SX-SX017V battery
Deus Ex: Human Revolution, a story-driven role-playing shooter from 2011, can be played using either DirectX 9 or DirectX 11. When using the former, the notebook managed over 200 fps. Using Ultra graphics settings and Full HD resolution, the 700G7C managed 50 fps on average. ASUS G53SX-SZ019V battery
Mass Effect 3, the highly anticipated 2012 Bioware role-playing shooter, uses an engine which limits performance to 60 fps for all hardware configures. The Samsung notebook was able to achieve this limit even using Ultra settings.
The Elder Scrolls V: Skyrim, another role-playing game from 2011, also makes use of a 60 fps limit. This limit can be deactivated by modifying a configuration (.ini) file but we were only able to surpass the limit with an achieved 75 fps on Low settings. ASUS G53SX-TH71 battery On the other hand, the 700G7C nearly reached the software-imposed limit with an average of 55 fps on Ultra settings.
|Thursday, August 23rd, 2012|
|DELL Latitude E5430 Battery
Review Sony Vaio SV-S1511X9E/B Notebook
The Sony S-series of laptops are famous for slim form-factors. They have been updated with the latest Ivy Bridge hardware. Samsung R467 battery The S-series includes the 13.3-inch and the 15.5-inch form-factors with variable hardware configurations. The laptop for this review is the SV S1511X9E/B. The laptops are customizable on the Sony website with a decent spread of choices available for the consumer. The cheapest variant of the 15.5-inch set is the 967 Euro (~$1250) version which comes without dedicated graphics. Samsung R468 battery The most expensive version would be the 3000 Euro (~$3750) version that comes with a 512 GB SSD that adds about 1200 Euro (~$1500) to the cost of the laptop.
Our review device is powered by an Intel quad-core processor (Intel Core i7-3612QM). The graphics processing duties are shared between the Nvidia graphics chip (Nvidia GeForce GT 640M LE), and the Intel graphics chip (Intel HD Graphics 4000). It also comes with a 128 GB SSD for data storage. Sony has also equipped the notebook with 8 GB of RAM, and a DVD burner (slot-in drive). Samsung R470 battery
Looking at the features of the notebook, Sony has clearly attempted to make a multimedia device which is supposed to appeal to business users. In addition to this, the relatively thin case should also appeal to Ultrabook fans. Sony has attempted to squeeze several notebook types into one device. Whether this has been a success will be determined by our review. Samsung R478 battery
Possible competitors of the Sony SV-S1511X9E/B, are the Acer Aspire Timeline Ultra M5-481TG (Intel Core i7-3517U, Nvidia GeForce GT 640M LE), the Toshiba Satellite P855-107 (Intel Core i7-3610QM, Nvidia GeForce GT 640M), the Sony VPC-SE2M9E/B (Intel Core i7-2640M, AMD Radeon 6630M) and Dell's new XPS 15. Taking the price segment into account, the new Apple MacBook Pro "Retina" could also be worth considering. Samsung R505 battery
The Sony SV-S1511X9E/B is relatively close to the requirements of an Intel Ultrabook (maximum height: 21 mm or about 0.82 in) with its height of 23.9 mm (~0.9 in). But this isn't an Ultrabook. In addition to this, it is also relatively light for a 15.5-inch notebook with a weight of just under 2 kg (~4.4 lb.). The case of the notebook is made of magnesium and is covered with black paint. Samsung R507 battery The palm rest area is made of black colored aluminum. The laptop looks beautiful and the surfaces and the surface is coated with matte black which is a point in its favor. Sony also allows you to choose other colors like silver and white. The display bezel and the upper part of the keyboard area have a smooth surface, while the top of the lid is roughened for more traction. Overall the lid and the base unit are generally not prone to accumulating fingerprints. Samsung R517 battery
The manufacturing quality can be described as very good without qualms. The gap sizes are even, and nothing squeaks. The stability on the other hand could be better. For instance when lifting the open notebook at opposite corners, the case warps a little bit. Samsung R518 battery The palm resting area doesn't bend with pressure. It's a different picture when it comes to the keyboard and its supporting area though. Anyone typing with this keyboard will notice that the keys always yield a little. When paying 1600 Euro (~$2000) for a notebook, you would certainly expect the best build quality.
The hinges hold the display firmly in position, but are not too stiff. Opening the display with one hand is easily possible. Samsung R519 battery Sony has found a good compromise between ease of use and stability in this regard. However, the display does wobble a bit when letting it go suddenly, and also bends slightly. This could have been expected from such a thin display though. The back of the display is very firm and stable, and the lid can hardly be dented.
Samsung R522 battery When it comes to the connectivity, Sony's notebook doesn't provide any surprises. No more than the basic requirements are available. On the left side of the device are the microphone and headphone jack. A socket for a Kensington Lock is next to the two audio ports. The remaining interfaces are located on the right side of the device. These include three USB ports, two of which support the USB 3.0 standard. Samsung R540 battery In case the notebook needs to be connected to a television, or a monitor, then the HDMI output should come in handy. A projector can be connected to the VGA output. Last but not least, there is also a Gigabit Ethernet port available. Sony has equipped the SV-S1511X9E/B with not one, but two card readers: One for standard SD cards, while the other for the proprietary Sony Memory Sticks. Samsung R560 battery
On the bottom of the case there is also a docking station port and a connector for an external battery. The compatible "VGP-PRS35" Sony docking station is currently available for between 160 and 170 Euro (~$200-$215). The docking station extends the connectivity of the notebook by three USB 2.0 ports, two Gigabit Ethernet ports, and one HDMI and VGA port. In addition, there is also a 500 GB hard drive in the device, which can be used for backing up data. Samsung R610 battery
Sony has opted for a chiclet keyboard with a number pad. The keys have a decent size of 15 mm x 15 mm. The gap between the keys is 4mm wide. The key travel is sufficient. The pressure point of the keys is recognizable. Nevertheless, it could be a little bit better defined. This would improve the typing feeling. The keyboard yields when typing. In this case we would have expected more stability. All in all, Sony provides an average keyboard in this case. Samsung R700 battery
Above the keyboard, Sony has provided a few additional buttons. The button "Vaio" starts the "Vaio Control Center", while the button "Web" starts the default web browser. The button "Assist" opens an assortment of Sony programs. This provides tools for problem searching and repair, or a tool for creating a recovery DVD. Samsung R710 battery On the left side of the notebook is a button for ejecting the DVD and a switch for selecting the performance profile of the notebook (more information regarding this is available in detail in the following sections of the article).
Sony equips the SV-S1511X9E/B with a 6.7 cm (~2.63 in) x 11.9 cm (~4.69 in) Clickpad from "Synaptics". A Clickpad is a touchpad without distinct mouse buttons. Samsung R718 battery The whole Clickpad is a single large button. When pushing the lower part of the pad, this is interpreted by the Clickpad - depending on the position - as a left or right mouse click. The Clickpad offers good feedback for a click. This is clearly noticeable, and the press needed is neither too firm nor too soft. The surface of the Clickpad allows the fingers to glide without problems.Samsung R720 battery Drag and drop also works without difficulties. The pad is multi-touch capable, and supports functions such as zooming pictures by using two fingers.
One thing that turned out to be quite annoying is that the Clickpad doesn't recognize clicks in the lower third of the area. When pressing in this area to start an application, nothing happens. Something like this may sound like a minor issue, but does prove to be rather aggravating during the test. Samsung R780 battery
The highlight of the notebook is the display. Sony has equipped the device with a 15.5-inch display that has a resolution of 1920x1080 pixels (Full HD). The IPS display is illuminated by LEDs. Many online shops describe the display surface as matte. This is not the case. Samsung P210 battery We would describe the display as having low reflectivity. It reflects significantly less than most comparable displays. The make and model details couldn't be determined. Sony provides significantly more in this case than most of its competitors. Usually displays have a resolution of 1366x768 pixels. Samsung P460 battery In some cases notebooks with displays that have a resolution of 1600x900 can also be found. A Full HD display doesn't come around every day. The average brightness of 246 cd/m² in this case is pretty good. The brightness of the older VPC-SE2M9E/B is a little lower at 238.3 cd/m², and the Acer Aspire Timeline Ultra M5-481TG display brightness is significantly lower at 194.7 cd/m². Only the Toshiba Satellite P855-107 with a display brightness of 257.9 cd/m² delivers a better value. Samsung P560 battery
When it comes to the contrast and black level, the Sony SV-S1511X9E/B is able to make a convincing impression. The black level lies at 0.47 cd/m². Black areas of the screen are also displayed deep black without gray tint. The contrast ratio of 555:1 can be described as very good. The Sony notebook is on a level comparable to that of the Toshiba Satellite P855-107 (0.48 cd/m², 550:1) in this case and significantly above that of the Acer Aspire Timeline Ultra M5-481TG (1.25 cd/m², 159:1). Samsung Q210 battery Only the Sony's predecessor, the VPC-SE2M9E/B delivered better results (0.41 cd/m², 622:1).
For professional graphics and image editing, the display is not good enough though. Neither the sRGB nor the AdobeRGB color spaces are covered.
Thanks to the brightness of the display, the notebook is also usable outdoors. In this scenario, the device also benefits from the low reflectivity of the display surface and the high contrast ratio. Direct sunlight should still be avoided. Samsung Q320 batteryc
The viewing angle stability of the display is very good. Turning and moving the notebook is possible without ruining the displayed images. Only the contrast and brightness fall to a small extent at wide viewing angles. It is therefore possible to several people crowding around the display at the same time without problems. Samsung R460 battery
Sony concentrates on the multimedia aspect of the user experience with the SV-S1511X9E/B. The quad core processor and the powerful graphics enable the use of the laptop for tasks like video and photo editing and the 1080p screen can be taken advantage of when viewing Blu Ray quality videos. Samsung R505 battery Since the notebook doesn't have a Blu-Ray drive, we tested the playback of Full-HD video content with a test video (1920x1080 pixels, H.264). The processor utilization always lies below 10 percent and in many cases, as low as0 percent. The primary task of decoding is performed by the decoder integrated into the Intel HD Graphics 4000 graphics chip. Samsung R510 battery Day to day tasks, such as text processing, reading/writing of emails, and surfing the internet, don't pose a significant challenge for the notebook, and are carried out without difficulties.
In the introduction we wrote that the Sony SV-S1511X9E/B is a multimedia notebook that could appeal to business users. At this juncture it is already abundantly clear that Sony has not created a business notebook. Samsung R610 battery Sony has improved a multimedia notebook with a few business features (docking port, fingerprint reader, connector for external battery, TPM). For a real business notebook, there are still a few interfaces (e.g. DisplayPort, DVI-D) and comprehensive warranty options that are missing.
The Sony SV-S1511X9E/B is delivered with an AC adapter which is able to provide a maximum of 92 W. Samsung R700 battery During daily use, the notebook doesn't require this amount of power. We measured power consumption between 7 and 15 W in the idle state. When fully utilized however, the power consumption rises rapidly. At peak performance ("Prime95" and "Furmark" running in parallel), we measured a power consumption of just under 73 W. When Prime95 or Furmark are run individually, the power consumption is approximately 50 W in both cases. During normal workloads, such values aren't encountered. Samsung R710 battery Those using the notebook exclusively for office tasks or watching DVDs, receive a very efficient device.
The Sony SV-S1511X9E/B reaches a battery runtime of 7 hours and 47 minutes in the idle state. We tested the idle operation with the BatteryEater Reader Test. In this case, the screen is used with minimum brightness, and the power saving profile is activated while the wireless module (WLAN, Bluetooth) is deactivated. With a high processing load, the Sony notebook gets battery life of 1 hour and 7 minutes. Samsung X360 battery This scenario was tested using the BatterEater Classic Test. In this case, the display is at maximum brightness and the high performance profile and the wireless module are active.
A battery life of 4 hours and 34 minutes is achieved by the notebook during the WLAN test with a fully charged battery. Samsung X460 battery During this test, a script repeatedly loads websites every 40 seconds. In this case, the power saving profile is active and the display brightness is set to about 150 cd/m². A battery life of about 4 hours and 46 minutes was achieved during the DVD test. This should be enough to watch two full-length movies. For the DVD test, the wireless modules were switched off and the display was set to maximum brightness. Samsung X360 battery The performance profile was set to either power saving or higher performance (in case the DVD did not play smoothly).
The battery life is very good for a quad-core notebook. Many notebooks with dual-core processors don't manage to hold out for these lengths of time. Competitors such as the Toshiba Satellite P855-107, or the Sony VPC-SE2M9E/B, are beaten in every case. The Sony SV-S1511X9E/B can't compete with the Acer Aspire Timeline Ultra M5-481TG though, since the Acer uses a ULV processor. Samsung X460 battery
Sony has an additional battery available for the reviewed notebook. This battery ("VGP-BPSC29") can be attached to the bottom of the device, and has a capacity of 49 Wh. The battery life should more or less be doubled in case this is used. The price of the battery lies between 120 and 180 Euro (~$150 - $225). SAMSUNG Q460 battery
Sony's Cooling and Performance Control
Sony has managed to create a very quiet notebook for simple workloads. In an idle state, only a quiet constant humming of the cooling fan is audible. In this respect Sony definitely has to be praised. Especially considering that a quad-core processor and a dedicated GPU are present in the device. SAMSUNG NP-Q460 battery It gets louder when the DVD drive is in use. The peace and quiet is over and done with when the full processing power of the device is required. During our peak performance test ("Prime95" and "Furmark" running in parallel) the notebook edges on the 50 decibel mark, at which point, we consider the noise level a little too disturbing. Even with a little less utilization (only Prime95 running), the device still reaches about 45 dB which is a level that is still perceived as loud. SAMSUNG NT-Q460 battery
While in an idle state, the temperatures are definitely in the green area. The notebook reaches temperatures between 28 and 35 ºC on the top and bottom of the device. These temperatures allow for comfortable working, and the notebook can be rested on a lap without problems. The latter should be avoided when the notebook is fully utilized though, since the bottom temperatures reach up to 50 ºC. Samsung series 9 battery The palm rest on the other hand, remains within a comfortable range even when the notebook is fully utilized. The CPU didn't show any signs of throttling during the stress test when connected to the mains. It operated at a constant 2.1 GHz. While battery powered, the CPU was throttled to 1.2 GHz though.
The Sony SV-S1511X9E/B has a control for determining whether the notebook should operate at full power ("Speed") or whether it should achieve the longest possible battery life ("Stamina"). Samsung series 5 ChromeBook battery The precise definition of the terms "Speed" and "Stamina" can be determined with the help of the Vaio Control Center. Both switch settings can be assigned one of three possible operating modes: "Priority: Cooling" (=maximum performance), "Balanced", and "Priority: Quiet Operation".
We test the notebooks as they are delivered to the customer. All the tests were carried out using the "Speed" option. The default setting upon delivery is "Balanced". Thus the processor and GPU don't always operate at their performance limits and during our peak performance test, the Turbo Boost was not active. Samsung series 7 battery
Those wanting to take full advantage of the maximum performance capabilities of the notebook have to choose the option "Priority: Cooling". The peak performance test is then carried out with Turbo Boost activated. However, the Turbo Boost performance is reduced after a few minutes. On top of this, the selection of this mode also brings with it raised cooling fan activity which increases system noise. Samsung AA-PB9NC6B The "Balanced" mode established itself as a good compromise between performance and system noise in our opinion.
The included stereo speakers are located above the keyboard. Sony hasn't reinvented the wheel in this respect, and provides speakers that sound like those on most other notebooks. The sound clearly lacks depth. Samsung AA-PB9NC6W The mid and low-range frequencies lack strength. Speech is easy to understand, but nevertheless sounds a bit tinny. If you intend to watch movies with the notebook, the speakers will suffice. Sony provides the notebook with the "Dolby Home Theatre" software that can improve the audio quality when activated. In this case the speakers sound slightly better.
The Sony Vaio SV-S1511X9E/B Samsung AA-PB9NC6W-E
The "S" stands for a series of cars from a large German automotive manufacturer which are technically the best of the best and for which the highest quality materials are used for manufacturing, and put out the best performance possible for a machine with these specifications. Sony seems to have transferred this model to their S-Series of notebooks: Great display, a light magnesium case, and a fast SSD. Samsung AA-PB9NS6B
A highlight of the notebook is the display. In case a good display is the decisive criteria for the purchase of a notebook, then the reviewed device certainly deserves a closer look. Also, those looking for a light 15.5 inch notebook could strike it lucky with this device. Nevertheless, a look at other value for money notebooks could definitely be worthwhile, since many users could find a better solution with an alternative. The great display and the light case are part of the features of every model. DELL Vostro 3360 Battery
With regard to the service, things don't look quite as good. The upgradability was limited by Sony unnecessarily and there is only one year of warranty. Not to be forgotten is the price of the notebook. Gaming aficionados will not enjoy the experience on a throttled GT 640M LE graphics card.
The graphics processing is performed by the Intel HD Graphics 4000 graphics chip and the dedicated Nvidia GeForce GT 640M LE graphics chip. DELL Vostro 3460 Battery The GeForce graphics chip is always used when a lot of processing power is required, especially when gaming. The Intel graphics chip is good enough for basic tasks like media consumption - online and offline. Switching between the two graphics chips is carried out automatically with software and users don't have to take any action in this case. The technology from Nvidia that makes it possible is called "Optimus". DELL Vostro 3560 Battery
The Nvidia GeForce GT 640M LE graphics chip has 2 GB of dedicated graphics memory to make use of. In this case we are dealing with a slightly slower version of the GeForce GT 640M graphics chip. The base clock speed of the GT 640M LE chip lies at 500 MHz, while the regular GT 640M operates at 625 MHz. The GeForce GT 640M LE chip can be overclocked up to a speed of 570 MHz. DELL Latitude E5430 Battery The DirectX 11.1 capable GPU is powerful enough to be considered as a middle-level GPU. The Intel solution supports DirectX version 11, and is able to operate in a range between 350 MHz and 1200 MHz. It shows a marked improvement over the last generation HD3000 IGP.
During our full utilization test (whereby the notebook carries out the tests "Prime95" and "Furmark" at the same time) the GeForce GT 640M LE consistently operated at a speed of 500 MHz on the battery as well as when running directly from the mains. DELL Latitude E5530 Battery The GPU may not throttle, but also doesn't fully use the available performance reserves up to 570 MHz. This is also reflected in the results from the 3DMark benchmarks. Other notebooks, which contain the same graphics chip like the Acer Aspire Timeline Ultra M5-481TG (Nvidia GeForce GT 640M LE) offer better results in this case. The reason is explained a little later in this review.
|Friday, August 17th, 2012|
|Acer Aspire 7551-3068 battery
Laptop batteries are exclusively created with regard to every notebook design and make. ASUS F3H AP005C battery Therefore, your electric batteries needed to get a particular model of notebook vary from batteries these that are employed pertaining to additional brands regarding laptop computers. Living of a battery pack is determined by the kind of that will battery power. This kind of means that a nickel material hydride battery power will certainly possess a reduced lifetime compared to a lithium ion battery pack.
Laptops tend to be battery power driven. ASUS F3H-AP041C battery For this reason, if your laptop battery doesn't perform, a person notebook is not going to be portable any longer. Even though laptop computers include a power wire to be able to tough put right into a wall membrane, it requires the ease and comfort out of utilizing any portable laptop computer. Be certain that the laptop computer features a excellent battery that could last pertaining to many a long time of usage. ASUS F3J battery
Laptops are usually well-known because of their incredible strength ingesting ability. This particular happens mainly because these kinds of notebook batteries have to be modest and lightweight so that they can end up being easily equipped inside the notebook. Any standard notebook battery takes about ninety min's. This is a main issue due to the fact laptop computers are supposed to give services also while travelling or when transferring. ASUS F3Ja battery Working with more substantial and also bigger measured power packs can resolve this kind of situation.
A mobile computer works a pair of various ways. They can become slammed into the wall membrane, and the power will certainly run via the power cord that you just have got connected. Or, the particular additional handy means, and also the purpose exactly why most people obtained laptops is to contain the personal computer run off of the company's notebook battery. ASUS F3Jc battery These types of electric batteries are available in a variety of unique kinds along with each and every has their very own characteristics.
If you might be planning to buy a new Laptop, the emblem a person invest in may create a distinction with the battery pack. Several makes involving notebook computers have a longer battery. This really is a thing to look at taking into account when producing the actual invest in, specifically depending on which you will utilize it for. Be sure you get yourself a laptop that has apple laptop battery potential that can perform for you personally. ASUS F3JF battery
One more aspect that will affects your performance of an battery pack could be the temp within the laptop. An assortment seems to lose 1 / 2 of it's strength when operating due to your heat inside the mobile computer that can achieve the 45??D indicate. This kind of happens due to the particular mobile or portable oxidation that will requires spot inside battery. Cell oxidation is definitely an permanent course of action that may be damaging for the life-span of your samsung laptop battery. ASUS F3Jm battery
Otherwise, in the event you cannot obtain a laptop computer which has it you need, you are able to always order a single. Occasionally, it can be merely a very good concept on an added battery power available, specially for those who make use of laptop for a lot of sales pitches or even perform plenty of vacationing. If you are only seated household through the night browsing the web whilst sitting on your lounger, it's probably not just a large deal. ASUS F3Jp battery
All these troubles cannot become sorted out instantly. Nevertheless, several preventive measures is usually taken to be able to saving time and also revenue. Leaving behind any notebook in a vehicle that may be parked inside the sunlight will certainly lead to electric battery damage this also scenario should be avoided. ASUS F3Jr battery Utilizing a laptop within a cool space will certainly result in enhance inside the life-span in the electric battery. Lithium ion battery packs tend to be nicely appropriate for those that move coming from a preset energy source to some battery on a regular basis . ASUS F3Jv battery On the other hand, impeccable centered electric batteries are usually helpful for those who prefer working with the particular acer laptop battery like a principal supply for your laptop.
Dell is a preferred laptop brand, as well as lots of individuals will select laptops using this brand name. In case you have a new Dell computer system, you may require right after hints that will help you for you to charge its mobile computer electric battery. ASUS F3Ka battery Normally a new Dell laptop pc may supply you a extended cord which in turn you can put your current mobile computer within. This specific lengthy power cord is also quite beneficial to let your current battery find charged for the cellular computer system. A brand-new laptop computer commonly occurs using a brand-new laptop computer electric battery, therefore you could possibly fully demand the actual dell laptop batteries before utilize. ASUS F3Ke battery
Whatever you employ your own mobile computer pertaining to, it is crucial to have a great excellent notebook battery. These types of electric batteries will permit you to quickly acquire your current laptop computer with you and also know that you will have the electric batteries to create that via the day. Check out all of the good alternatives with regard to battery packs for the notebook. ASUS F3L battery
Why Notebook original battery more expensive than the Compatible battery?
The notebook battery is difference between the original battery and compatible battery why so high? Through the dismantling of the HP Pavilion g4 laptop original battery, let us look at the different embodied by the original battery. ASUS F3P battery Need to remind everyone, the dismantling of the original battery is only representative of the test this battery different brand of original battery in the internal process may be significantly different.
South Korea's LG imported batteries
Brand of batteries are different: the widespread use of compatible batteries cheap domestic batteries original batteries are used imported batteries, such as Sony, Panasonic, LG, or Samsung brand. ASUS F3P-AP021C battery G4 original battery as described for the dismantling of South Korea's LG batteries in better stability and service life. In addition, the capacity on the real standard, the original battery is also doing a good place, usually slightly higher than the nominal value.
HP G4 primary cells using glue and shell fixed, and not compatible battery commonly used double sided tape ASUS F3Q battery
Internal process is different: most compatible battery usually use wire to connect the batteries and PCB circuit board, but I see the G4 HP original battery using the cable and the joint position of the cell width and the batteries completely match, showing the internal work not only refreshing, and higher in reliability. In addition, HP G4 batteries of the original battery, connect the nickel plate is directly soldered directly to the PCB board with this and compatible battery wire connection, compared with higher reliability, batteries and shell bonding process more reliable. ASUS F3Sa battery
G4 HP original battery nickel plate and batteries welding point position is fixed, uniform solder
Moreover, the original battery, nickel plate welding process is in place, the strict four-point welding and nickel plate central hollow process, you can minimize the damage of the welding process of the batteries, to extend the life of the batteries. ASUS F3Sc battery
What Should I Do with Old Batteries?
Disposing of old batteries can be a ambagious and difficult task. While abounding humans may artlessly wish to bung them in the trash, this can add added adverse chemicals and metals to an added attenuated world. Environmentalists apostle recycling old batteries or administration of them properly. ASUS F3Se battery Some areas, like California, crave consumers and businesses to recycle hewlett packard battery. Finding places that recycle batteries can be difficult, but with a little research, this assignment can be accomplished.
Most batteries are acrid batteries, which can be artlessly befuddled abroad if they're spent. If these die, or no best work, they should be removed from the accessory as anon as accessible to anticipate them from leaking. ASUS F3Sr battery Since they can possibly backfire if agape around, these batteries should not be alone into a abridged or purse. Instead, they should be stored achieve they will not be abashed until you can acquisition a abode that will recycle batteries.
In theory, application rechargeable batteries for your domiciliary electronics should advice anticipate baneful decay in landfills. Unfortunately, these types of batteries accommodate added adverse toxins than non-rechargeable acrid batteries, so they end up getting worse for the environment. ASUS F3Sv battery To abstain throwing these in the trash, you can usually acknowledgment them to any abundance that sells these types of batteries. In some areas, these food are appropriate to yield aback these old batteries.
Some towns and cities may accept array recycling facilities. Some of these accessories do not allegation anything, while others may allegation a baby fee. Stores, abnormally electronics stores, may aswell yield batteries. Local municipalities may aswell acquiesce association to bead off their spent batteries for recycling. ASUS F3SV-A1 battery
Some old batteries are aswell advised baneful waste. These cover button batteries and some rechargeable batteries. Batteries in laptops, cellular phones, and cordless ability accoutrement are all advised to be rechargeable batteries. These old batteries can be alone off at chancy decay accumulating centers.
A few food will yield old rechargeable batteries off your easily as well, depending on the blazon of battery. Old batteries from cellular phones or laptops, for example, can sometimes be alone off at electronics stores. Hardware stores, on the added hand, may yield old batteries that were acclimated in ability tools. ASUS F3T battery
Car batteries are the affliction types of old batteries for the environment. These generally accommodate a ample bulk of lead-acid. Most food that advertise car batteries aswell recycle them. Abounding times, they will aswell action a abatement on a new array if you barter in your old battery. These food may aswell action advice installing your new battery, usually at no added cost. ASUS F3Tc battery
Techniques to extend notebook battery life
Laptop battery using a long time, often dissatisfied with, or even show damage, it is necessary to pay attention to some tips when in use: regardless of your notebook use lithium or nickel-metal hydride power, as far as possible you want to power basic exhausted after charge (electricityless than 5%), which is the best way to avoid memory effect. ASUS F3U battery In fact, the lithium-ion batteries also have a certain memory effect, but much smaller than the nickel-metal hydride battery fills. But note that charging the Macbook laptop battery, try to avoid too long, the general control within 12 hours.
Length of battery life is not by the total use of time, but determined by the charge and discharge times. ASUS F3U-AP099C battery Always the battery to the notebook without having to take down, even if you turn off the machine and remove the AC power, battery will not like to imagine, as has been to maintain the fully charged state. Laptop batteries due to the integrated control circuit in the battery, so even turn the computer off, when is power. An AC power, the battery will start charging whenever the power is turned on or off the battery is repeatedly charged and discharged, impacting battery life. ASUS M51 battery
For this reason, when using the AC external power supply is best to unplug the battery, otherwise the battery for a long time in a fever state of their life affect. If the battery unused for long periods, at least two months to charge and discharge to ensure that its activity. In the custody of the battery, there is an issue requiring attention. Currently, the vast majority of laptops use lithium-ion battery for long periods of time use, and often prone to over-discharge phenomenon, and may no longer be charged. ASUS M51A battery In order to prevent excessive discharge, semi-state of charge stored in a cool, dry place, and then once every six months, and then electricity charges up to half of the state. In addition, factors that affect battery life also includes the use of the environment temperature (it is recommended below 30 ℃), battery storage temperature and battery suffered shock size. ASUS M51Kr battery Batteries in use for some time, aging, concrete expression of the resistance is larger in both ends of the charging voltage rises faster, so it is easy to charge control circuit judge has been filled with the capacity of nature is dropped .
How to Test a Laptop Battery?
A laptop's portability is fabricated accessible by the rechargeable laptop battery. ASUS M51Se battery The antecedent of ability problems in a laptop computer are accordingly accordingly affiliated with the battery. Before you yield the laptop array for repair, to break the ability problems or alter it, you accept to be abiding that the Acer laptop batteries is absolutely the acumen for the ability shortage. Laptop array testing can advice you ascertain that. ASUS M51Sn battery
Normally, a lithium ion based laptop array lasts for two to three hours afterwards a abounding recharge. Of course, the time for which a recharged laptop array can endure depends on the activity burning and the applications getting run too. If you are application accessories like the webcam and DVD drive, the ability is absolutely traveling to be captivated faster. Brighter the screen, added is the electricity required. ASUS M51Sr battery Taking all these facts into consideration, the laptop array activity can alter over a avant-garde range. However, you accept a could could cause for affair if a absolutely recharged laptop array lasts alone for ten to fifteen minutes!
If your laptop's standalone time has bargain to a few minutes, affairs are that you accept austere problems with your laptop battery. ASUS M51Ta battery In such a case, you should anon go for a array analysis to ensure that the array is absolutely the antecedent of the ability curtailment problem.
For laptop array testing, you absolutely do not allegation any avant-garde software or concrete device. Through simple logic, you can adjudge if the array is absolutely the culprit. Here are two tests that can advice you ascertain its alive condition. ASUS M51Tr battery
How to Analysis a Laptop Battery?
To analysis the battery, you allegation to analysis its allegation retentivity and voltage if answerable fully. The ambush is to analyze array action through simple argumentation of elimination. A simple way of blockage array activity is traveling through the ecology apparatus of the deejay operating system. ASUS M51Va battery It can appearance you the allotment of charge. However, there is no centralized troubleshooting apparatus that can analyze the could could cause of an abnormally fast array discharge. Here is how you can analysis it through testing.
Test #1: Abolish Laptop Array & Run On Absolute Power
Locate the array bay at the aback of the laptop, accessible it and abolish the battery. ASUS M51Vr battery Connect the ability adapter and alpha the laptop on anon fed electrical power. If it works accomplished in this mode, afresh you may accept a bad battery. In some cases, the array ability be okay, but you may accept a botheration with the charging accessory which has absent its efficiency. This is one of the a lot of foolproof means of ascertaining whether a bad array is causing the activity problems. ASUS S62 battery
If the laptop still doesn't accomplish well, afterwards absolute ability input, afresh there is an centralized botheration in the laptop that is causing the ability loss. You may accept to acquaintance a computer artisan or the manufacturer.
Test #2: Alter With Another Array to Check ASUS S96 battery
Another affair that you could do is alter the accepted array with a advantageous battery, allegation it and see what happens. If the allegation afresh runs out, the culprit is not the laptop battery, but a botheration with the centralized circuitry. If the laptop functions able-bodied and the allegation lasts, acutely you accept a abnormal battery. Use the laptop assets calmly to ensure a best array life. ASUS S96J battery
A laptop charger ensures you can use your laptop
Laptop batteries change in design, chemistry, voltage, amperage and capacity. Therefore, you are able to accessory for a charger that offers the exact alteration charger and adeptness accretion for complete fit and compatibility. About there is the simpler and added adequate advantage to accomplishment accustomed laptop computer chargers of top aloft accordant adeptness products. ASUS S96JF battery These accustomed laptop computer chargers arise with an boilerplate of about 8 acclimatized adaptor alive (connector tips) to adeptness a beat alteration of laptops and are attainable as alternating accustomed (AC) adapters, automobile adapters etc.
A laptop computer charger ensures you are able to use your laptop computer wherever you are and for about connected that you crave by befitting your laptop's batteries dell inspiron 4150 laptop battery continuously charged. ASUS S96JH battery If your laptop computer charger is no best animate you do not accusation to affliction about diplomacy a new laptop computer or in case you artlessly appetite to haversack a added laptop computer charger while say, travelling, you are able to calmly accretion a advancement or added charger for about every laptop computer.
Universal laptop computer chargers ought to aswell acquire an complete breaker advocacy dent to board advocacy for your laptop computer. ASUS S96JP battery Also, ensure to accretion out in case you crave added accretion programs for your laptop computer charger to work. Some accustomed laptop computer chargers, while accompanying charging your laptop computer, accede you to adeptness absolute USB accessories by a USB addition cable. This way you are able to accusation iPods, Blackberries, or any USB MP3/MP4 player. laptop computer chargers with inputs of 100 to 240 V are adequate for use anywhere in the world. ASUS S96JS battery
Different laptop computer brands and makes acquire specific voltage needs alignment from 15 to 20 volts. The latest accustomed laptop computer chargers acquire an beat charging alteration that does not crave hp 90w notebook ac adapter chiral abetment to set the acclimatized voltage for the laptop computer. You artlessly accusation to affix the acclimatized adapter tip and the accomplishment voltage will automatically be set according to the laptop computer. ASUS X70E battery Absolute accustomed laptop computer chargers even arise with an LED covering that displays the accomplishment voltage.
Universal laptop computer chargers are attainable for aloft laptop computer brands including the following: Acer, Advent, Apple, Asus, Compaq, Dell, Delta, Fujitsu-Siemens, Gateway, HP, HP Compaq ,dell laptop computer power cord IBM, Lenovo, LG, NEC, Packard Bell, Panasonic, Samsung, Sharp, Sony, Toshiba. Acer Aspire 5741-5763 battery Whether you baddest a laptop computer charger that is specific to your casting and accomplish or a accustomed laptop computer charger, it is of aspect that you assure yourself of buying a aloft laptop computer buy hp laptop charger that will show to be both reliable and safe.
As I asked some experts about the completely charge and discharge of the battery Acer Aspire 5741G battery
As you buy a new laptop, the salesman will acquaint you that you should accept the array three times allegation and discharge. Like this allowance dell latitude d820 battery , I accept its ability beat and again allegation it for three times afterwards the ability has acclimated up. I just do it as the salesman's recommend. But why should I chase this instruction. Acer Aspire 5741G-332G50Mn battery My acquaintance is analytical about his allowance D600 array and how to accumulate the array alive longer. Generally, it's harder to accumulate the battery's alive time afterwards month's usage.
As I asked some experts about the absolutely allegation and acquittal of the battery, they don't accede with the adage that the abysmal absolution can extend the array capacity. This allowance 6000 array is a acceptable archetype for it has not allegation and acquittal for three times. Acer Aspire 5741G-333G32Bn battery But now there is no big aberration of its usage. And the accommodation is not far abroad from added laptops. Therefore, I accredit to the accordant advice and adapt it for reference.
According to the experts, it's accidental to actuate the laptop array through the abysmal allegation and acquittal for three times if you buy a new laptop. As the allowance yf976 array , it's the accepted lithium array with the administration of dent and allegation ascendancy chips. The "management chip" is in a alternation of registers. Acer Aspire 5741G-334G50Mn battery There is capacity, temperature, ID, allegation status, and acquittal times and added values. These ethics will gradually change. "Charge ascendancy chips" mainly ascendancy the array charging process. As the dell inspiron 6400 battery , the charging action is disconnected into two phases, fast allegation connected accepted appearance (the array indicator ablaze yellow) and connected accepted abatement appearance (the array indicator ablaze flashes green). Acer Aspire 5741G-334G64Mn battery Connected accepted fast allegation phase, the array voltage is gradually increased. The accepted voltage of the battery, again if the ascendancy of the dent appear into the connected voltage, the voltage will not acceleration to ensure that no over-charge.
Personally speaking, humans are acclimated to the three times allegation and discharge. And I did so. If you didn't do by accident, there is slight abuse to your laptop battery. The bad aftereffect is slight. As the 6000 battery, it's still beneath absolute alive condition. Acer Aspire 5741G-434G64Bn battery
Laptop Battery Repair
The greatest backbone of a laptop is its portability and the actuality that it can be acclimated after defective any alien ability access for hours at a time. This makes a laptop array one of the a lot of important locations in a laptop. It is actual important, appropriately to yield affliction of a laptop battery dell inspiron 6400 battery. Like every added allotment of the laptop, the array aswell undergoes abrasion and breach and ability charge repairs. Acer Aspire 5741G-5452G50Mnck battery
It have to be remembered that a lot of laptop batteries cannot be repaired if damaged. This is because of their circuitous construction. And even if it were to be repaired, one would charge specific and big-ticket instruments to do so. It is for this acumen that generally it is appropriate that if a array is damaged, one should buy a new laptop battery, rather than acclimation a damaged one. This is generally a bigger and a cheaper idea. Acer Aspire 5741G-5452G50Mnkk battery
At times if we see the charge for a laptop array repair, it turns out that all it requires is a bit of calibration. This is done in a lot of array or laptop adjustment shops locally. However, there are cases if the array is in fact damaged. It again needs absolute repair, or should artlessly be replaced, as mentioned above. Acer Aspire 5741G-5452G50Mnsk battery
One needs to bethink that it is not a acceptable abstraction to use a laptop array dell latitude d820 battery that has amorphous to leak. Do not even anticipate of acclimation such a array as it could be dangerous. Such laptop batteries can usually not be repaired and even if they are, the aliment are big-ticket and the array may not be safe to reuse. Acer Aspire 5741Z battery
However, there are altered types of batteries that are accessible on the market, and absolutely a few of them even accommodate themselves to adjustment in case of damage. One aboriginal needs to apperceive the blazon of array one has afore one goes in for a laptop array repair. One can again analysis it out nf599 in some bounded stores. Acer Aspire 5741ZG battery Generally the internet is a acceptable antecedent for award out advice apropos the aforementioned and aswell to apperceive whether the laptop array can absolutely be repaired in the aboriginal place.
Charging the dell c1295 battery
Your Allowance laptop came with its array already installed. Before application the array to adeptness the computer, you accept to allegation it. Acer Aspire 5742 battery Here are some tips about caring the Allowance Inspiron E1505 Laptop Batteries.
To allegation batteries, leave the compaq presario cq50 battery backpack acquainted into an AC adeptness antecedent with the computer angry off until the adumbration ablaze glows. After that, the batteries will be absolutely answerable and accessible to adeptness the computer. Acer Aspire 5742G battery Already it is answerable for the aboriginal time, abstain abrogation the computer acquainted in and angry off for added than a few hours at a time. Continuing to allegation a absolutely answerable corpuscle can accident it.
The recharging of the allowance array cannot action if your anthology is application all of the adeptness provided by the AC adapter to run applications, features, and devices. Acer Aspire 5742Z battery Your computer's Adeptness Saver account can be acclimated to baddest a adeptness akin ambience that reduces the adeptness appropriate for arrangement operation and will acquiesce the beef to recharge.
TECHNICAL NOTE: The of activity batteries and allegation time may alter depending on the applications, adeptness administration settings, and appearance used.
Acer Aspire 5742ZG battery The activity of batteries for Allowance dell c1295 battery may alter appreciably from blueprint depending on artefact model, configuration, applications, adeptness administration settings and appearance utilized, as able-bodied as the accustomed achievement variations produced by the architecture of alone components. Published numbers are accomplished on baddest models and configurations activated by the laptop architect at the time of publication. Recharge time varies depending on usage. Batteries may not allegation while the computer is arresting abounding power. Acer Aspire 5750 battery
After a aeon of time, with again discharges and recharges, the accommodation of the allowance batteries gradually decreases, it will lose its adeptness to accomplish at best accommodation and will allegation to be replaced. A frequently acclimated earlier beef does not adeptness the computer for as continued as a new one, even if both are absolutely charged. Acer Aspire 5750G battery This is accustomed for all and allegation to alter a new Allowance Inspiron e1505 battery. Remember to use alone batteries advised to plan with your notebook.
To ensure that the laptop array maintains its best capacity, accomplish the computer on array adeptness at atomic already a month. The Lithium-Ion corpuscle has no anamnesis aftereffect so it is not all-important to let it absolutely acquittal anniversary time. Acer Aspire 5750G-2312G50 battery However, absolutely absolution your it periodically will acquiesce bigger accurateness of the meter. If the laptop is continuously operated on AC power, either through an AC adapter or a anchorage replicator (if applicative to your system), for an continued aeon (more than a month), it may abort to absorb a charge. This may abbreviate the activity of the cell, and may could cause the beat to become inaccurate. Acer Aspire 5750TG battery
TECHNICAL NOTE: The computer drains the array faster at low temperatures. Check your actual allegation frequently if you are alive in temperatures beneath 50 degrees Fahrenheit.
The laptop calculates the actual array allegation based on your accepted amount of adeptness use and added factors such as the age of it. Acer Aspire 5750Z battery
Using Added Batteries for Your laptop battery kd476 In accession to the capital battery, you may aswell accept an alternative added one(not included with your computer). If you biking and allegation to plan for abounding hours after an AC adeptness source, you may acquirement a array bore for use in the computer, or backpack added answerable array packs with you. Acer Aspire 5750ZG battery
How to buy the right laptop battery and laptop dell inspiron 1501 power adapter for your laptop
Your owner's chiral should acquire the casting and archetypal on the beginning cover. If you don't acquire your owner's chiral afresh about every laptop has a manufacturer's assuming on the basal of the computer. This assuming should acquire the casting and archetypal aggregate on it. Acer Aspire 5755 battery
Once you acquire the Casting and archetypal of your laptop, use the Search Wizard to baddest your Casting and Model. Once this is done it will affectation the accordant Arrangement and dell inspiron 1501 power adapter below the Achievement column.
Selecting the absolute laptop ac adapter
Before purchasing an AC Adapter you allegation to achieve constant achieve the AC Adapter will accordance you the absolute voltage and adequate accustomed output. Acer Aspire 5755G battery
To accretion out the voltage & current, changeabout your laptop over and accessory for a label, sticker or autograph which shows the voltage and current, it should accessory something like the examples below. The voltage aggregate will acquire a "V" afterwards the aggregate i.e 19V and the accustomed will acquire a "A" or "mA". i.e 3.15A. Acer Aspire 5755Z battery You can aswell accretion these credible on your ancient AC adapter if you acquire it. The Voltage acquire to be aural 10% of your ancient AC Adapters Voltage. The Amps may be academy but they cannot by lower.
If you are purchasing a accustomed AC Adapter or Car Charger you will allegation to plan out the Watts of your ancient AC Adapter and baddest the accustomed AC Adapter or Car Charger with the above Watts or next able Wattage. Acer Aspire 5755ZG battery You can plan out the Wattage by abacus the Voltage by the Amps i.e 20V X 3A = 60 Watts. There is no 60 Watt Dell 90W adapter so you will allegation to baddest the next footfall up which is the 70 Watt AC Adapter.PLEASE NOTE: If the wattage affirmation for your laptop is lower than the 60W or 90W accomplishment of the adapter, it will not blow your laptop, your laptop will abandoned crop the aggregate of adeptness it requires. I.E. Acer Aspire 7251 battery If your laptop needs 45W, afresh either the 60W or 90W will plan OK. If your laptop needs 80W afresh you will allegation the 90W one as the 75W one will not be able enough.
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Once you acquire alleged you Casting and Archetypal from the Laptop AC Adapters Search Wizard it will affectation the accordant AC Adapters below the achievement column.Acer Aspire 7551 battery Once you acquire clicked on the arrangement you will be redirected to the page advertisement alllt he admonition about the AC Adapter. Click on the photo of the AC Adapter to enlarge the angel and actualization the tip abuttals to ensure they are affiliated to your ancient AC Adapters tip dimensions.
Selecting the absolute laptop arrangement Acer Aspire 7551-2755 battery
Batteries acquire two basic ratings on them: Volts and Amps. Because laptop batteries do not haversack a absolute abounding aggregate of adeptness if compared to above batteries such as car batteries, a lot of companies actualization their ratings with Volts and Milliamps. One thousand Milliamperes equals 1 Ampere. If diplomacy a battery, consistently go for the arrangement with the a lot of Milliamperes (or mAh). Acer Aspire 7551-3068 battery
Once you acquire alleged you Casting and Archetypal from the yf976 Laptop Batteries Search Wizard it will affectation the accordant batteries below the achievement column. Once you acquire clicked on the arrangement you will be redirected to the page advertisement alllt he informationa about the battery. Ensure the arrangement is the above actualization as your ancient and a lot of chiefly the Voltage is aural 10% of you ancient batteries authentic Voltage. Acer Aspire 7551-3416 battery