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Lenovo 42T4757 battery

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PostPosted: Mon Aug 27, 2012 3:21 am    Post subject: Lenovo 42T4757 battery Reply with quote

Review Acer TravelMate P653 Notebook
The market for affordable business notebooks is being hotly contested. Several manufacturers often try to appeal to customers with less conspicuously conceived devices. Dell Inspiron N4010D battery When it comes to features and prices, the competition becomes less well defined though. In this case Acer provides stiff competition for itself with the smaller Travelmate P643. Others that shouldn't be forgotten are HP's Probook 6560b and the Lenovo Thinkpad L530, both of which also seek to attract the same buyers as the new Travelmate, and both of which provide a display with a greater resolution. Last but not least, the Dell Vostro 3560 is also a competitor. Dell Inspiron N4010D-148 battery
It should be obvious that the value for money proposition will likely be the main buying criteria for users, rather than a trendy design. For this reason buyers in this segment will often find themselves glancing at black or dark-gray straight edged notebooks, which merely gain some color from their hardware description stickers. How does our reviewed device stand out in this case then? Can the Travelmate P653 compete with its competition? Dell Inspiron N4010D-158 battery

Similar to the smaller P643, the P653 also makes a thoroughly convincing first impression. What we have in front of us is a well manufactured and solid 15.6-inch notebook, with a restrained design from the Timeline series that we are already familiar with. The shiny metallic black brushed aluminum surface of the lid looks very good. Dell Inspiron N4010R battery The following practical test however, showed that many surfaces could just as well be plastic judging by their feel. This doesn't matter though as they feel just as good as the input devices and the palm rest.
With its depth of about 3 centimeters, the notebook is not exactly thin, but the slightly rounded edges and the beveled sides make it appear more streamlined. The massive looking construction can easily be forgiven though, thanks to the good case stability promised by its appearance holding true - no creaking or bending to impair the impression, thanks to the magnesium case. Dell Inspiron 15R battery At 2.6 kg the notebook can also be held with one hand and moved around. Looking at the side of the Travelmate, it immediately becomes obvious that the design has been entirely focused on functionality. On both the right and left sides, there is hardly a square centimeter which hasn't been used for interfaces or cooling fan vents.
Dell Inspiron N5010 battery On the bottom of the case two further goodies can be found, which are also provided by the P643. On the one hand two drainage points which should collect and funnel out fluids spilt on the keyboard, and on the other a small opening for pressured air cleaning of the cooling fan "from the outside".
Dell Inspiron N5010D battery Even the opening of the notebook was considered for ergonomics with a matte plastic holding rail attached to the front of the lid, so that the fingerprints stay away from the surface and remains nice and shiny. The metal hinges make a robust impression, and allow the lid to be lifted up very easily, while also holding the display in place very firmly without a lot of wobbling. The working area which now becomes visible will be elaborated upon later. First of all we will take a closer look at the features of the P653. Dell Inspiron N5010D-148 battery

System Noise

At low loads, the Travelmate P653 is pleasantly quiet. During the majority of the test, which includes internet browsing or during office use, the hard drive was the loudest source of noise at 31.9 dB, and the cooling fan was usually inactive (or at least not audible). Dell Inspiron N5010D-168 battery
When the Travelmate is fully loaded (Prime95 + Furmark for one hour), the cooling fan turns up to 41.2 dB (comparable best value: Thinkpad L530 - 37.8 dB). This may not be extremely loud, but there is an annoying consistent "whistling" sound. During graphics benchmarks this kind is noise is heard. Every time the picture updates, there is a short beep from a transistor inside the device which means a consistent high frequency whistling with faster frame rates. Dell Inspiron N5010R battery
If this is not our test sample's error then this could lead to a lot of disappointed buyers of the Travelmate, who also want to use the device for playing games (otherwise the whistling is not noticeable).
Dell Inspiron M501 battery With low processing loads, the P653 stays pleasantly cool. The temperatures on the surface vary between 30.1C and 35.1C, and 30.8C and 38.1C on the bottom. Our review device stays impressively cool while browsing the net and typing this review and we can also enjoy sitting outside for once.
Dell Inspiron M501R battery With the notebook is loaded, the temperatures on the top reach a maximum of 40.5C (in the center). With an average of 38C the device may get pretty warm, but not unpleasantly hot and working with the laptop is still possible without problems. The maximum temperature on the bottom surface reaches 48.3C (area around the cooling fan).
Dell Inspiron M5010 battery The measured core temperatures permanently stay at 65 - 67 C (GPU) and 63 C (processor). There is no throttling of the CPU noticeable following a stress test with both cores running at about 2.9 GHz with Turbo Boost. The graphics card however is throttled down to 135 MHz from 700 MHz. The graphics memory is throttled from 800 MHz to 405 MHz in order for the (rather quiet) cooling system to not be over used. This takes place despite there being temperature reserves available. Dell Inspiron M5010R battery But we do know that notebook hardware should still be healthy at 80C. A subsequent 3DMark benchmark even shows a marginally better result than with a cool device. Throttling is therefore only a problem for the graphics card in certain simulated scenarios but not in during practical use.
Dell Inspiron M5030 battery Compared to the Probook 6560b, and the Thinkpad L530, the Travelmate is slightly warmer. The real frying pan among the candidates is the Vostro 3560 however, with a temperature of up to 53C on the top with a high processing load. The Travelmate P643 performs similarly to the larger version.


Users shouldn't expect perfect audio from the two small speakers at the front of the Travelmate.
Dell Inspiron M5030R battery Extremely high frequency, tinny and undefined, is the best way to describe the frequency response. If it had to be compared to similar devices, the closest thing would probably be a small battery powered radio from the 1980s.
At least the volume can be set quite high such that even medium sized rooms can be filled with sound. The audience won't be happy with the audio quality though, since the high frequencies can sound shrill to the ears at these volumes. In this case, it is better to fall back on external speakers, since these allow for good audio quality. Dell Inspiron 17R battery
Battery Life
Power Consumption

The power consumption in idle state can certainly make a good impression for a 15.6-inch notebook. Depending on the settings selected for the backlight of the display, between 8.7 and 12.3 Watts of power are used.
Dell Inspiron N7010 battery While at full load, the P653 uses an average of 59.1 Watts from the outlet and during extreme scenarios, the maximum value can reach up to 64.3 Watts. This is however a comparatively low value considering the fact that a considerably potent graphics card is also being stretched to its limits. This is something which could also be explained by the throttling experienced during the stress test. Dell Inspiron N7010D battery
Battery Runtime

A good notebook has to have decent battery life nowadays. And the Travelmate does deliver on this front to an extent.
Dell Inspiron N7010R battery The touted "8h+" battery life may only be possible under certain circumstances such as the minimal test, with the BatteryEater Readers benchmark, where 9 hours can be achieved by the 66 Wh battery. In this case, users who want to take longer train journeys with a dimmed backlight and inactive WLAN, reading e-books with the power saving profile active, will likely be satisfied with the results. Dell 312-1123 battery
More closely related to practical use is the WLAN surfing test, where the Travelmate stays on its feet for 5 hours and 24 minutes without the power connected. During this test, some popular websites are repeatedly loaded and Youtube HD videos are played with the backlight set to 150 cd/m. Dell's Vostro 3560 only lasts about 2 hours less with its smaller battery while the Travelmate P643 manages an additional 40 minutes over the P653, and can therefore be recommended to users with battery life as a high priority. Dell 312-1127 battery The Thinkpad L530 outperforms these laptops, thanks to its 9 cell battery, which makes for a battery life of about 7 hours, although it would probably last a similar amount of time with a 6 cell battery as used in our review device.
If intending to watch DVDs, then the Travelmate should provide about 142 minutes (2 hours and 22 minutes) of viewing time. Most blockbusters should come to an end within the available time without cutting off. In case the notebook is subjected to high processing loads (tested by us with BatteryEater Classic using full brightness and active WLAN), then the total battery life lasts for about 2 hours without the adapter. Dell J70W7 JWPHF battery
In the segment of 15.6-inch notebooks, no manufacturer will want to be criticized for not including or supporting an important standard as far as interfaces or expansion possibilities are concerned. In light of this observation, our reviewed Timeline device provides all the interfaces a buyer could ask for.
Dell R795X battery Monitors can be connected via HDMI, and Acer also hasn't forgotten that VGA ports are still in use and are often required for use with older projectors.
The USB 3.0 standard is already a year old, and three of them are available towards the front on the right side of the notebook. Unfortunately the ports are relatively close together and thicker USB sticks could get in each other's way by blocking a port. One USB 3.0 port is a Powered-USB port, and can also charge smartphones or other portable devices even if the notebook is in standby mode. Dell WHXY3 battery On the left side there is also a combined USB 2.0 / eSATA port. With the exception of the not very well established Thunderbolt port, all the standards for connecting external data storage devices are available.
Furthermore, Acer has also included both the ExpressCard standards with separate sockets, as well as a SD/MMX/XD/Memory Stick reader along with an RJ45 LAN port and DVD drive.
Communication DELL XPS 14 battery
Connecting to different networks with the P653 wirelessly is possible via WLAN (Intel Centrino 6235) using the standards b, g and n, or alternatively by using a hard wired Gigabit LAN (Broadcom NetXtreme) connection. The WLAN card also supports Bluetooth 4.0. In addition, Intel's Wireless Display technology is also supported.

DELL XPS 15 battery Along with the Kensington Lock port, Acer has also equipped the Travelmate P653 with TPM (Trusted Platform Module) as well as a fingerprint reader. From the BIOS security tools, it is possible for the encryption of important data.
DELL XPS 17 battery On the bottom of the case, underneath a rubber cover is a port for connecting a docking station, which expands the available interfaces further and represents a clear improvement over the previous models. A solution can be found in the price range of around 170 Euro, which also provides additional interface standards such as DVI support.
DELL XPS L401x battery A maintenance panel on the bottom of the case comes with a few cross head screws which separate the user from the important internal components like the hard drive and the RAM. These can be changed without a great deal of effort. There is also no warranty seal, so there is nothing standing in the way of upgrading the important components.
DELL XPS L501x battery Acer provides the Travelmate P653 with an international warranty of 12 months, and a bring-in warranty of 24 months. Those wanting to extend the warranty by an additional two years can do so for about 139 Euros.
DELL XPS L701x battery Acer provides the Travelmate P653 in configurations priced between about 800 and 1300 Euro. Buyers can choose between the Core i5-3210M (2x 2.5 GHz - 3.1 GHz) in the reviewed device, or a quad-core Core i7-3612QM (4x 2.1 GHz - 3.1 GHz) processor, as well as having the possibility of changing the 750 GB hard drive (Hitachi) in the reviewed device to a 500 GB hard drive or a 256 GB SSD, and upgrading the RAM to 8 GB instead of 4 GB. A better display is unfortunately not available to choose from. Dell XPS 15z battery
The value for money winner in this case is the variant for about 800 Euro in our review. If you need video editing but not of professional standard then the performance is more than enough, and also uses less power than the premium model.
Lenovo 42T4235 battery The combination of a Core i5, a 750 GB hard drive, and a dedicated Nvidia GeForce 640M may not make the review system a peak performance device, but nevertheless allows it to be a speedy all-rounder. Subjectively there is no reason for criticism when it comes to the performance of the Travelmate, even if it takes a little longer when booting up or starting programs than notebooks equipped with SSDs.

Lenovo 42T4731 battery The new Core i5-3210M Ivy bridge dual-core processor from Intel is one of the most popular processors on the market when it comes to the price to performance ratio. It is widely available in notebooks that are priced in the 800 to 1200 Euro range which are mostly multimedia devices with decent gaming specifications accompanying them.
Lenovo 42T4733 battery Not only is this helped by Hyper-Threading technology, which allows each of the processing cores to simultaneously process two threads, but also by Turbo Boost 2.0, which automatically over-clocks individual cores to 3.1 GHz when required.
These features help the Travelmate P653 to good single-core benchmark results during the Cinebench R11 benchmark, and are similar to other models (e.g. Dell Vostro 3560, 2% faster). They can even keep up with current Core i7 quad-core (e.g. 3612QM) processors (exactly just as fast). Lenovo 42T4737 battery The results overall only diverge by about 2-8% from each other, and are therefore hardly noticeable in practice, something that is likely due to the Turbo Boost not working as efficiently (permanently 2.9 GHz, with maximum boost of 3.1 GHz merely active every 2 seconds for a short time - see screenshot).
Lenovo 42T4753 battery During the multi-core benchmark (Cinebench R11 64-bit multi) however, the Travelmate is outperformed by the faster processor in the Lenovo L530 by 15%, and by the Probook 6560b by 2%. The identically equipped notebooks like the Vostro 3560 and the Travelmate P643, also achieve the identical score as the Travelmate P653. Logically the processor lags behind further during multi-core benchmarks compared to the latest quad-core processors, since these can get more out of each of the available cores. Lenovo 42T4757 battery Once again the Travelmate is outperformed by 3% compared to identically equipped competitors. Nevertheless, in this case the performance scores are more or less in line with those from a Core i7-720QM, which was one of the first quad-core i7 notebook processors from Intel.
Thus all the required application areas are a possibility, which span from office use to gaming, and occasional editing of HD videos, while serious video editing users will likely want to select faster quad-core processor configuration.

System Performance

Lenovo 51J0499 battery With both PCMark Vantage, as well as PCMark 11, which give an indication of the entire system performance in practice, the Travelmate P653 lags behind slightly compared to its competition.
In these cases, scenarios like video editing, video decoding and internet browsing are tested. When it comes to PCMark Vantage, the reviewed device is outperformed by the Dell Vostro 3560 by about 5%, while this increases to about 10% in the case of PCMark 11. And the Probook 6560b is 26% or 8% faster respectively. Thus our reviewed device is last in line compared to its competitors. Lenovo ASM 42T4703 battery
Subjectively the perceived performance and speed doesn't provide any cause for criticism, and the Travelmate is an average notebook with a standard hard drive. A comparison with the competition is therefore worthwhile in order for users to make a better assessment based on their priorities between price and performance.
Gaming Performance Lenovo ASM 42T4752 battery

The GeForce GT 640M should, at least on paper, be suitable for gaming using medium detail settings. The low standard resolution of the Travelmate P653 of 1366x768, should also allow for higher detail settings to provide smooth gameplay.
Taking a look at the popular shooter Metro 2033, the slim multimedia notebook Aspire Timeline M3-581TG is the Travelmate's biggest competitor (in this price segment with comparable hardware), and is also made by the same manufacturer. In this respect it calculates the individual frames approximately 20% (800x600, low) and 9% (1360x768, medium) faster than our reviewed device. Lenovo ASM 42T4756 battery This is somewhat surprising, since the Aspire is equipped with a slower ULV processor. One explanation could be that this produces less heat with a high processing load, and therefore allows the Turbo Boost to be used to a greater extent than our normal TDP notebook processor.
Anno 2070 and Fifa 2011 were tested for benchmarking. Fifa 2011 shows that the graphics card still has a lot of spare processing capacity for higher detail settings. At high detail settings, 146 fps (frames per second) was the maximum frame rate, using the full resolution of the Travelmate. Anno 2070 is also smoothly playable with the GT 640M in the Travelmate using high details with an average of 34 fps. Asus A43 battery
Users of the business notebook won't have to worry about juddering images in any case when playing up to date games like Anno 2070 and Fifa 2011 where the performance of the GPU nestles in between that of a GT 555M and a GTX 460M. Using an external monitor with a higher resolution is probably not the best idea, since this will also lead to frame rates dropping, which can make the difference between "almost smooth" gameplay and a "slide show". Asus A43B battery Although the notebook was not conceived for gaming use, it still provides decent performance. Other affordable business competitors from other manufacturers, most of which adopt slower GPUs, would literally "stagnate" like the Vostro 3560 (HD 7670M) which is 41% slower with Anno 2070 using medium details. The smaller P643 should also provide the same gaming performance, considering the identical hardware and 3DMark benchmark results. Asus A43BY battery
The impression the Acer P653 made on us was that it was a simple device. In this case nothing is overstated (with the exception of the metallic surface on the lid) and the price is straight forward at 800 Euro, buyers will receive an honest all-rounder, wrapped up in a staid case with magnesium-aluminum accents which is enhanced with soft rubber in important places (input devices, palm resting area). Asus A43E battery
Of course the display is not suitable for graphic designers and also only has a brightness of around 200 cd/m, and can't really be used under direct sunlight. Furthermore the notebook is not especially thin, and is also not able to provide bass but that is not what it is intended for.
In practice the P653 only stands out due to it being inconspicuous. Users won't get annoyed by an imprecise touchpad with loud hard to operate buttons, or a keyboard layout which can cause typing errors, a loud cooling fan or short battery life. Everything works the way you would want it to. Asus A43F battery
Acer is providing an affordable and stable package with a lot of storage space as well as a lot of battery capacity, in combination with the latest CPU and graphics card, all of which should cover many application areas.
One thing that really stands out as a negative though, is the whistling sound emitted during gaming which can become as annoying as the high pitched sound from the speakers. Hopefully only our reviewed device was affected by this as we were not able to notice the same issue with the smaller P643. Asus A43J battery Those making good audio quality one of their priorities should either use external speakers or avoid the Travelmate altogether. If users can come to terms with the disadvantages of the P653, then it could definitely be a good choice as the price is right. Those requiring a higher display resolution and who would be willing to trade this for a slower graphics card, should find competitors like the Thinkpad L530 and the Probook 6560b interesting alternatives for the office. As usual: Bargain hunting is worth it!
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