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x264 HD Video Encoding Performance

Graysky's x264 HD test uses x264 to encode a 4Mbps 720p MPEG-2 source. The focus here is on quality rather than speed, thus the benchmark uses a 2-pass encode and reports the average frame rate in each pass.

Video encoding and other thread heavy tasks are best suited for AMD's more-is-better core strategy. You get six cores on the 1100T and three with the 455, in both cases the competing Intel part doesn't stand a chance. In the second encoding pass the Athlon II X3 is over 30% faster than the Pentium G6950. Without unlocking additional cores, the Phenom II X2 565 BE doesn't impress here.

PAR2 Multithreaded Archive Recovery Performance

Par2 is an application used for reconstructing downloaded archives. It can generate parity data from a given archive and later use it to recover the archive

Chuchusoft took the source code of par2cmdline 0.4 and parallelized it using Intel’s Threading Building Blocks 2.1. The result is a version of par2cmdline that can spawn multiple threads to repair par2 archives. For this test we took a 708MB archive, corrupted nearly 60MB of it, and used the multithreaded par2cmdline to recover it. The scores reported are the repair and recover time in seconds.

The Phenom II X6 is competitive in our Par2 test, the Athlon II X3 455 is significantly faster than the Pentium G6950 and the Phenom II X2 565 falls short of its target. Rinse and repeat.

7-Zip Benchmark Performance

Included in 7-zip is a pure algorithm test that completely removes IO from the equation. This test scales with core count and as a result we get a good theoretical picture of how these chips perform. Note that the actual 7-zip compression/decompression process is limited to 2 threads so there's no real world advantage to having more cores.