Latitude E5520: Design, build quality and connectivity Not only does the integrated graphics processing do a good job on 3D applications, it has a media processing feature that can be used to hardware-accelerate the encoding and decoding of video files. A typical notebook equipped with a first generation Core CPU with Intel HD graphics can achieve around 1800 in this benchmark. This was shown in 3DMark06, where the Latitude E5520 recorded a mark of 4255. The Intel HD 3000 graphics in the second generation platform provide more than double the performance of the first generation. It is perhaps in the 3D processing arena where the biggest gains in performance can be seen compared to the integrated graphics of the first generation Core CPUs. A freefall sensor is built in to motherboard. If you want to sacrifice some capacity for data security, then a 320GB encrypted hard drive option is also available. Our test unit came with a 7200rpm hard drive (a solid state drive is an option), which recorded a zippy transfer speed of 32.12 megabyte per second in our tests. Storage space in the Latitude E5520 is 500GB. Its time of 51min in our media transcoding test, where we convert a DVD file into a 1.5GB Xvid file using AutoGordianKnot, is one of the fastest times we have seen to date and is a whopping 17min faster than the Acer notebook. This type of performance is first generation Core i7 territory (the Dell XPS L501x recorded a time of 43sec in the Blender 3D test using eight threads), and it's a good deal faster than comparable first generation Core i5 laptops we've seen, such as the Acer Aspire 5742G. In the Blender 3D rendering test, the Latitude E5520 notched up a time of 40sec, and in our iTunes MP3 encoding test it recorded 48sec. The high speed translated into great performance in our tests. In our tests, the CPU ran at a consistent 3GHz when it was under an 80 per cent load, and under lower loads (under 50 per cent) it was able to reach up to 3.2GHz. This is well above the standard 2.6GHz clock speed of the CPU, and it's of most benefit when performing tasks such as creating MP3 files and converting video files from one format to another (transcoding).
The CPU has a Turbo Boost frequency that can hit a maximum of 3.3GHz. The rest of the notebook's configuration is comprised of 4GB of DDR3 SDRAM, integrated Intel HD graphics, and a 500GB, 7200rpm hard drive. Compared to the previous generation of Intel Core i5 CPUs, the 2nd Generation Core i5 provides a significant boost in performance for advanced tasks such as media encoding and decoding, and even 3D gaming - even business users need to take some time out. Our Latitude E5520 shipped with an Intel Core i5-2540M CPU, which is a dual-core CPU that has a 2.6GHz frequency, Hyper-Threading, (for a total of four threads), and Turbo Boost.
Latitude E5520: Specifications and performance
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