Simply put, it is a reproducible measure of how fast your machine can encode a short HD-quality video clip into a high quality x264 video file. It’s nice because everyone running it will use the same video clip and software. The video encoder (x264.exe) reports a fairly accurate internal benchmark (in frames per second) for each pass of the video encode and it also uses multi-core processors very efficiently. All these factors make this an ideal benchmark to compare different processors and systems to each other.
Benchmark Results: The x264 HD Video Encoding Benchmark uses two different passes. The first pass isn’t very processor intensive and the Intel Core I7 930 was able to perform slightly faster. The second pass tells us a different story. The second pass which is much more processor intensive was lead by the AMD Phenom II X6 1055T.