Comparison List Update: All Socket LGA2011 CPU’s

Intel Sandy Bridge-E – Desktop Processor

All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), TXT, Intel VT-x, Intel VT-d, Turbo Boost, AES-NI, Smart Cache, Hyper-threading, except the C1 stepping models, which lack VT-d.

Model C/T CPU Clock Unlocked L2 Cache L3 Cache TDP
(W)
Geizhals
Standard Turbo
i7-3970X 6/12 3.5 GHz 4.0 GHz Unlocked 6 x 256KB 15 MB 150
i7-3960X 6/12 3.3 GHz 3.9 GHz Unlocked 6 x 256KB 15 MB 130
i7-3930K 6/12 3.2 GHz 3.8 GHz Unlocked 6 x 256KB 12 MB 130
i7-3820 4/8 3.6 GHz 3.8 GHz Partially
unlockedÂș
4 x 256KB 10 MB 130

The X79 chipset allows increasing the base clock (bclk). Other than that there are different CPU straps: 1.00x, 1.25x, 1.66x or 2.50x.