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 unlockedº |
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.