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AMD Athlon II X4 635 & Phenom II X2 555 Black Edition
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by Rob Williams on February 18, 2010 in AMD Processors

AMD last month launched five processor models, three Athlon II’s and two Phenom II’s, and we’re taking a look at one of each. The Phenom II is a 3.20GHz dual-core, and a Black Edition dual-core at that, while the Athlon II is the ultra-affordable 2.9GHz quad-core. Let’s see how both stack up to the rest of AMD’s line-up, and the competition.

Multi-Media: Adobe Lightroom, TMPGEnc Xpress

Photo manipulation benchmarks are more relevant than ever, given the proliferation of high-end digital photography hardware. For this benchmark, we test the system’s handling of RAW photo data using Adobe Lightroom, an excellent RAW photo editor and organizer that’s easy to use and looks fantastic.

For our testing, we take 100 RAW files (in Nikon’s .NEF file format) which have a 10-megapixel resolution, and export them as JPEG files in 1000×669 resolution, similar to most of the photos we use here on the website. Such a result could also be easily distributed online or saved as a low-resolution backup. This test involves not only scaling of the image itself, but encoding in a different image format. The test is timed indirectly using a stopwatch, and times are accurate to within +/- 0.25 seconds.

TMPGEnc Xpress 4.5

When it comes to video transcoding, one of the best offerings on the market is TMPGEnc Xpress. Although a bit pricey, the software offers an incredible amount of flexibility and customization, not to mention superb format support. From the get go, you can output to DivX, DVD, Video-CD, Super Video-CD, HDV, QuickTime, MPEG, and more. It even goes as far as to include support for Blu-ray video!

There are a few reasons why we choose to use TMPGEnc for our tests. The first relates to the reasons laid out above. The sheer ease of use and flexibility is appreciated. Beyond that, the application does us a huge favor by tracking the encoding time, so that we can actually look away while an encode is taking place and not be afraid that we’ll miss the final encoding time. Believe it or not, not all transcoding applications work like this.

For our test, we take a 0.99GB high-quality DivX H.264 AVI video of Half-Life 2: Episode Two gameplay with stereo audio and transcode it to the same resolution of 720p (1280×720), but lower the bit rate in order to attain a modest file size. This test also utilizes the SSE instruction sets, either SSE2 or SSE4, depending on what the chip supports.

AMD’s CPUs continue to impress with these tests. The lowly $120 quad-core manages to keep right up to Intel’s $200 Core i5-661 in our Lightroom test, but falls a bit behind in our TMPGEnc Xpress test. To be fair, that test uses SSE4 for Intel CPUs, while AMD lacks it. It does however show the raw performance gains that can be seen when SSE4 is utilized, however.


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