Acer Aspire 4520 Battery

In terms of drivers,( Battery Acer Aspire 4520 ) the Asus laptop is equipped with the Nvidia ForceWare driver 266.39 (8.17.12.6639) and there weren't any problem with the automatic graphics switching, Optimus. A few days ago, Nvidia has released the new driver version,(battery Sony VGP-BPS9/B ) 270.61 with WHQL certification. This 172 MB sized package can be installed retroactively via Nvidia's Internet website. However, we executed the following benchmarks of this configuration in the state of delivery (266.39).

We checked the Intel Core i7-2630QM's performance with the latest CineBench version,(HP 8510w battery ) among others. The performance in CineBench R10 (64bit) multi-thread rendering is impressive with a result of 16947 points and is within the upper third of our database. The CPU can also prevail in single core processing with 4505 points. A look at the new CineBench R11.5 version shows that the i7-2630QM belongs to the fastest processors designed for mobile devices. The result (4.9 points) is within the expected good range. Devices with the same CPU would for example be the Acer Aspire 5750G,( Dell 6400 Battery ) the Alienware M17X gaming notebook or the Sony VAIO VPC-F21Z1E/BI with a 3D screen.

5.9Windows 7 Experience ( Dell Vostro 1520 battery ) IndexProcessorCalculations per second7.4Memory (RAM)Memory operations per second7.6GraphicsDesktop performance for Windows Aero5.9Gaming graphics3D business and gaming graphics6.7Primary hard diskDisk data transfer rate5.9 PCMark Vantage 6917 points

PCMarkVantage from Futuremark only indirectly rates single components and relates to the entire system and the given performance. ( VGP-BPS13B/B battery ) In connection with the incorporated Intel GPU,( Dell 1510 battery ) the Asus N53SN once again secures itself a good rank in our databank and achieves a total of 6917 points. The HP Envy 14-1010eg or the somewhat older MSI GT660R with a GeForce GTX 285M can be found in its immediate vicinity, for example. But even devices with an i7-2630QM manage reaching top positions by means of numerous rating frameworks. An example for this would be the Schenker XMG A701 with a GeForce GT 540M GPU, which could attain a remarkable 14285 points.

It gets interesting when it comes to the Nvidia GeForce GT 550M in the synthetic benchmarks. (Battery Sony VGP-BPS13/B ) What can Nvidia's upper mid-range bid in comparison to other GPUs? 3DMark06 starts off our tests since we can access a comprehensive database with over 700 data entries.

The Asus N53SN( Dell Inspiron 1525 Battery ) achieves 8817 points in this benchmark and is thus in the midfield with room to move up. The Nvidia GeForce GT 540M averagely lags behind our test device. Examples for this would be Schenker's XMG A501 (8157 points) or Acer's Aspire 5750G (8011 points) with the same CPU. The Nvidia GeForce GT 555M, as the top model of Nvidia's midrange, achieves good 11110 points in the Dell XPS 17 (difference: 20.64 percent).( Battery Dell Inspiron 1420 ) A look at the gaming GPU, Nvidia GeForce GTX 460M, shows another performance bonus and thus a larger difference. In the Asus G73SW, 13932 points are possible in this test (difference: 36.71 percent).

Naturally, a look at 3DMark11 shouldn't be omitted in a new GPU with DirectX 11 support.( Dell Inspiron 1520 battery ) The Asus N53SN can establish a good 1107 points for itself in this latest 3D benchmark. Devices with Nvidia's GeForce GT 540M lag behind by about 70 to 100 points in this test (Sony VAIO VPC-F21Z1E/BI: 1033 points) and thus supply a weaker score. However, a comparison proves that laptops with an Nvidia GeForce GT 555M,(Dell Inspiron 1720 Battery ) AMD Radeon HD 6750M, or HD 6850M are even faster. The differences in comparison to the GT 550M tested here is 14.78 (1299 points, Dell XPS 17), 16.07 (1319 points, Apple MacBook Pro 15), or 33.15 percent (1656 points, Acer Aspire 7750G) in the same order.

Asus uses a Seagate Momentus 7500.5, 2.5 inch hard disk with the model name,( Battery Dell Vostro 1320 ) ST9750420AS, as the mass memory. This disk can stand out from the broad mass thanks to 7200 revolutions per minute.( VGP-BPS13A/S battery ) The maximum read transfer speed is between 107 and 117 MB per second and the access rates of 13 – 15 milliseconds are impressive for a conventional hard disk. Even the latest generation solid state drives can be used thanks to SATA 3 support (e.g. Intel SSD series 510, OCZ Vertex 3) in order to tickle out the maximum performance from the system.

The Nvidia GeForce GT 550M could supply a good performance in the synthetic gaming benchmarks.( Dell Vostro 1310 battery ) Can the good results from the benchmarks also be kept up in the latest games and thus in routine use? For this assessment, we have looked at both older tracks as well as new creations from various developers.

The very new Crysis 2 from the forge of Crytek starts off our list and can even make full-fledged systems work up a sweat. The GeForce GT 550M allows a smooth game play (39.5 fps) in the pre-settings 1024x768 pixels and high.(battery dell vostro 1400 ) The GeForce GT 540M and the faster GT 555M deliver 36, respectively 55.4 fps in these settings (difference: -8.9 and +28.7 percent). A comparable alternative from AMD is the Radeon HD 6750M for this game (53 fps; difference: +25.5 percent).

It runs a bit better with the very popular multi-player game from DICE. Battlefield: Bad Company 2 still runs smooth in a resolution of 1366x768 pixels,( Dell D620 Battery ) high pre-settings and quadruple anisotropic filtering (4x AF).( Dell Laptop Battery ) Consequently, it secures itself a good positioning in the midfield. The difference to the GT 540M and GT 555M is -13.3 percent (30 fps) and +16.2 percent (41.3 fps) in this game. The older AMD Radeon HD 5850 is on a slightly superior level, as well. This GPU allows 44 frames per second on average (difference: +21.4 percent).

It goes back to the 40's and 50's in the USA with the game, ( Acer Aspire 4710 Battery ) Mafia 2, developed by 2K Games. The GTA opponent's performance requirements are fairly moderate and the game still runs smoothly with 21 fps even in a resolution of 1920x1080 pixels and 16x AF. The GeForce GT 540M can't keep up in this game and the track doesn't run smoothly with 21 fps (difference: -21.4 percent). The GT 555M and the AMD Radeon HD 6750M haven't got any problems with the ultra pre-setting, but are almost on the same level. The frame rates are 27.1 fps (+1.5 percent) and 26 fps (-2.6 percent).

Last but not least, it's time to deal with the real time strategy game, ( Sony VGP-BPS13A/S Battery ) StarCraft 2 – Wings of Liberty. Despite its comparatively simple graphics, it puts quite a demand on the system resources. The Asus N53SN allows smooth gaming (37.6 fps) in high presets and a resolution of 1360x786 pixels. The ultra setting only runs with annoying freezes. The comparison to both Nvidia GPUs (GT 540M, GT 555M) shows differences of -1.6 percent (37 fps) and +19 percent (46.4 fps). (Acer Aspire One Battery ) The AMD Radeon HD 5850, used above for comparison, supplies an average of 39 fps (+3.6 percent) and is only slightly in front of the GeForce GT 550M.

Review Lenovo Thinkpad T420 Notebook

An invariable constant. ( battery Acer Aspire 4520 ) The tried and tested Thinkpad design has practically remained untouched on the outside. But from now on, the new Sandy Bridge hardware does its job inside the T420. Moreover, the compact office laptop boasts with an excellent communication configuration for the professional field.

Lenovo has doubtlessly made a name for itself in the business field with the Thinkpad notebooks. ( Acer 4710 Battery ) The T-series wants to "offer the best security, manageability, services and support" according to Lenovo's homepage, (Acer Aspire One Battery ) and thus sets itself apart from the top of the significantly stronger W-series. In return, the X-series scores with a greater mobility.

Our test device is the 14 incher from the T-series, called T420. ( Sony VGP-BPS13A/S Battery ) Adjacently, the 15 inch model, T520, is also offered and in review at the same time. Essentially, the Tx20 laptops only differ from the previous models,(battery Sony VGP-BPS9/B ) called T410 and T510, by a hardware refresh to the new Sandy Bridge processors.

The test device's full name is T420 4236-NGG.(HP 8510w battery ) Inside an Intel Core i7 2620M CPU does its job. The incorporated graphics chip, Intel HD Graphics 3000, is exclusively available for video output in our test model. This configuration is supported by a four gigabyte DDR3 main memory and a fast 500 GB hard disk with a revolution speed of 7200 rpm. Aside from various Core i processors, ( Battery Dell Inspiron 6400 ) the T420 is also available with a dedicated NVIDIA NVS 4200M graphics card and Optimus technology – at least in the USA. Consequently, the rating of performance contingent parts is dependent on the real configuration and can't necessarily be applied to other models.

The Thinkpad T420 can practically be seen as an immediate opponent of the basically similarly configurable Latitude E6420 from Dell.( Dell Vostro 1520 battery ) While Dell has opted for a completely new design, ( VGP-BPS13B/B battery ) Lenovo contrarily sticks to the tested and tried Thinkpad design for the Thinkpad T420. We will show to what extent both vying notebooks differ in detail.

Case

14 or 15 inch, the looks have been maintainedAt first glance, ( Battery Dell Vostro 1510 ) The T420 doesn't seem to differ from the T410 much. But this is deceptive. For one thing, the display's diagonal has slightly shrunk from 14.1 inches to 14 inches. The same applies for the laptop's height and width, (Battery Sony VGP-BPS13/B ) whereas the depth has interestingly gained a bit. The measurements for comparison: 30.5x340.5x233mm for the T420 and 32x336x239 for the T410.

Albeit, as we will see in a moment, quite a few changes have been made on connectivity, Lenovo sticks to the proven, light clamshell design. No modifications can be found in color or material choice, either. ( Dell Inspiron 1525 Battery ) The almost completely black case has been made from plastic. The haptics correspond to the choice of materials. However, the matt and slightly roughened surfaces don't feel unpleasant.

The case's stability is basically satisfying. But it still shows the same weaknesses known from the T400. So, ( Dell Inspiron 1420 battery ) in the Ultra Bay slot's area and on the plastic cover above the keyboard. The case can yield somewhat and creak under selective pressure.

The display components stand up well to our warp and pressure tests.(Battery Inspiron 1520 ) It hardly bends when the case is lifted up at its edges. The hinges are first give in before image distortions turn up under selective pressure. In return, the display bezel yields evidently when pressure is applied and allows image deviations to become visible.

We like the metallic hinges that hardly teeter after adjusting the opening angle.(Dell Inspiron 1720 Battery ) Surprisingly, they don't cope well in shaky work conditions (train journey). Since they are smooth and the base unit is sufficiently heavy, both single-handed opening and closing are possible. The maximum opening angle of even a bit more than 100 degrees doesn't cause any restrictions in any case.

In addition to the clamshell design,( Battery Dell Vostro 1320 ) the ramshorn hook contributes to safety during transportation. It keeps the device securely closed and can be opened easily with the slider on the front edge.

Let's start with a tour around the device itself.( sony VGP-BPS13A/S battery ) We notice that the positioning favors right handed users a bit. Depending on the utilization of single ports, a few cables can gather on the left, which may considerably obstruct the work area on the laptop's left. Two of the five USB 2.0 ports, the display port, the VGA and the RJ45 are found on the left's center edge.

In opposition, ( Dell Vostro 1310 battery ) Lenovo has taken care to place potentially permanently occupied ports, such as the other two USB 2.0 ports and the eSATA/USB combo port, in the right's rear area in the interface arrangement. In addition, the right accommodates, from front to back, (dell vostro 1400 battery ) a 3.5mm combo audio socket, the optical drive in an Ultra Bay slot, a 4in1 cardreader that supports SD, MM, SDHC, SDXC, and an ExpressCard34 port.

The rear is completed by a powered USB 2.0 port and a RJ11 modem socket. ( Latitude D620 Battery ) The power adapter is also connected on the case's rear.

To our regret, Lenovo forgets, like Dell in its E6420,( Dell Laptop Battery ) to install a USB 3.0 port in the course of the refresh. Although the eSATA interface also bids a higher data transfer rate than USB 2.0, increasingly more external mass memories are being offered with USB 3.0 ports and eSATA is disappearing little by little from the market. In comparison to the competition, we also notice that Dell relies on the utilization of a HDMI port in the E6420 and thus accepts the according restrictions. In opposition, Lenovo remains resolute in installing a display port directly on the device.