Anyway, I've noticed that my encodes have got more than twice as fast... Before I was getting an average of about 13FPS at Deux Six Quatre, set to 2000Kbps, and now I'm getting about 29. My memory timings are a bit tighter now, due to running a lower FSB clock - 4-4-4-12 at 375MHz vs 4-4-4-15 at 425MHz. However, I doubt that makes much difference. What strikes me is that my CPU usage, relative to the number of cores, is higher. It was previously showing up as ~160%, whereas now, it's showing up as about ~360% (you'd surely expect about 330%? - sorry about the impossible percentages. It's OS X's terminology, not mine
) - I guess the threading in X264 is very efficient with more cores - otherwise it must be that one task has to run in a single thread and is only using about 60% CPU time? I don't know. It's just weird.It's a recent SVN build, running on OS X 10.5.1.