Benchmarks - memory, plus PiFast and MP3 encoding
No meaningful differences to report for the memory analysis. The drop in L3 cache doesn't show up in AIDA's tests.
Core i7 3930K loses out to 3960X to the tune of 100MHz of peak Turbo Boost speed, with the cheaper chip topping out at 3.8GHz if either one or two cores are used. But its pace is strong enough to be close to the lead, and who is going to notice 0.6s here or there, right?
And the same is true in the WAV-encoding test. We feel it's always sensible to put the numbers into context, and the half-priced Core i7 2600K (Sandy Bridge 'regular') is just as fast in this light-load test.