The manufacturer is not ashamed to characterize Lenovo ThinkPad W520 as a "workhorse", a large pony. In other words, here we have a performer in a portable format or relatively portable, a laptop that does not require a special backpack to be carried.
Lenovo W520 features put it high above of other portables screen and processor. We talk about its display. Initially I thought that we have here a VA or IPS matrix. By its angles of vision I have concluded that it is a TN matrix. In recent years we have received exceptional tests of these portable screens. Some models from Sony VAIO are really good but W520 exceeds them all. The reason? The laptop has the X-Rite colorimeter.
Lenovo ThinkPad W520 has a graphics station, dedicated to processing images or work in environments where quality and accuracy of the display are important. The professional video card supports this idea. For those who know that there is a difference between the red Coca Cola and the red Vodafone, Lenovo has integrated a restpad in the colorimeter. This component simply adds $70 of the price system on the official site. Its use is very simple: run an application, choose the white point, select the gamma, close the screen and after two minutes have the spanned panel.
So far we have tested several laptops with Intel Core i7-2630QM. This is not the best performing model from Intel. With 2 MB cache in addition, i7-2820QM Core comes with an increase of frequency. Lenovo W520 has a processor that can achieve 3.4 GHz with a single core in the Turbo Boost mode. If you want a more powerful processor, you will find the next level of performance from Alienware. In synthetic tests, the i7-2820QM Core is comparable with models for i7-9x0 Desktop Core.
In short, the Lenovo W520 is a very fast laptop. Its 8GB DDR3 memory is enough for almost any application and can be doubled if is needed. The Nvidia Quadro 1000M video card is not one of the best professional ones. But those who need its special features will appreciate that he didn't has a common Nvidia GeForce.
Lenovo W520 had no problems with cooling. The system is efficient and relatively quiet. When the fan reaches full speed, its noise is noticeable but not uncomfortable. The air removed through slots in the upper left-back gets to be quite hot during synthetic tests but the heat is not felt on keyboard or on the restpad.
During the running of a 1080p movie using Video Playback profile and reduced brightness to 85%, autonomy offered by Lenovo W520 was around of 4 hours and 20 minutes. Meanwhile the wireless network card was disabled. It should be noted that the battery charging is quite slow; time is 3.5-4 hours.
The audio system can bring only negative points of this laptop. We refer here to the audio quality. This is excellent for a laptop of business class or professional. The speakers have a very good volume and can be compared with the Bang & Olufsen from Asus N53.
Lenovo W520 brings a range of facilities for business or professional users. Among them include the ThinkVantage Technologies, Intel Anti-Theft, TPM and Secure Managed Client and Lenovo Enhaced Experience 2.0 for Windows 7.
Lenovo ThinkPad W520 is not a laptop for a ordinary user. The present model has not even entered in the retail network. It is only available to companies working directly with Lenovo and who needs specialized equipment. Not everyone needs a display with extended colorimeter.
Pluses and minuses:
[+] A very powerful configuration
[+] Extended colorimeter display
[+] Flawless construction
[+] One of the best keyboards on the market
[+] Excellent autonomy for the system performance
[+] Powerful and quality speakers
[-] The speaker grilles can het dirty