Intel’s sitting pretty at the top of the desktop CPU performance index, with its midrange quad-cores routinely spanking AMD’s 8-core Bulldozer chips. If you need more power than those midrange offerings, you go to the big guns. Intel’s six-core Sandy Bridge-E processors offer quad-channel RAM, twelve processing threads, and massive cache. By a 53% to 47% margin, our community prefers the i7-3930K, which is nearly as powerful as the 3960X but $450 cheaper.
Intel Core i7-3930K
"3930k, better performance/value by a longshot! Even though this is a pure performance category you could buy your motherboard for the price difference between the two and you'll almost never see much difference outside of benchmarks."
Intel Core i7-3960X
"3960x all the way. Simply beast and glad I sprung for mine"