This article compiles the best benchmark results we collected of various CPU models using x264 HD Benchmark 3.0, a free CPU benchmark developed by graysky, Dashken and Adrian Wong. This CPU performance comparison guide currently covers 173 different CPU models but this is just the beginning. We will keep updating the results as new results come in, so please contribute your results.

Here is the list of updates :

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- Added the Intel Xeon W5580 workstation processor (overclocked to 3.33 GHz).
- Added the Intel Core i7-930 desktop processor (overclocked to 3.5 GHz).
- Added the AMD Phenom II X4 810 desktop processor (overclocked to 3.7 GHz).
- Added the AMD Phenom II X4 810 desktop processor (overclocked to 3.4 GHz).
- Added the Intel Core 2 Duo E4700 desktop processor (overclocked to 3.2 GHz).
- Added the AMD Athlon II X2 240 desktop processor.
- Added the Intel Core 2 Duo T7250 mobile processor.