"To the people wondering about the performance on OS X, I think part of the performance difference is because Tom's is using a Hackintosh. My iMac, that doesn't have as good specs as the ones posted in the Test System specs, is faster across the board in the benchmarks I tried.
Apple knows the hardware it's going to use and so it optimizes for that hardware; on a Hackintosh you aren't going to see the same speed. If Tom's could do it, it would be interesting to see the stats when using an authentic Mac at as close to the same specs as possible."
Untrue. If it is set up *correctly* with the correct kexts being used, and somewhat more importantly, correct power management, there should be very little difference between a hack and a true mac. Go check out the geekbench or cinebench scores for hacks vs equivelent "true" macs.
That said, I would suggest toms run some other benchmarks on their hack box and make sure the cpu is scaling to turbo and normal states from idle. I know the sandy bridge i7s were having problems without a patched AICPM.kext where they will stay at idle speed (~1600mhz) rather than going to normal (3+ghz) and turbo under load.