X264HD 5.0 Test
Tech ARP’s x264 HD Benchmark comprises the Avisynth video scripting engine, an x264 encoder, a sample 1080P video file, and a script file that actually runs the benchmark. The script invokes four two-pass encoding runs and reports the average frames per second encoded as a result. The script file is a simple batch file, so you could edit the encoding parameters if you were interested, although your results wouldn’t then be comparable to others.
This is another example of a useful benchmark that’s based on real-world code. I like encoding benchmarks since they’re one of the few tests that can measure a real-world use of the power of modern multi-core processors. I like this particular benchmark since it’s the best “overclock killer” I’ve seen: systems that will run most stress tests all day long with a given set of overclock settings will crash on this benchmark.
Here we can really see the performance benefits of overclocking. Just flipping a switch on the motherboard raises the Run 1 performance by almost 8% and the Run 2 performance by almost 9%. Auto tuning gives a 9% and 10% boost, respectively, while my manual overclock hits 17% and 15% increases.
Join me in the next section for my final thoughts and conclusion.