Intel Core i7-3960X vs Intel Xeon E3-1280
Physical Specifications
| Socket | Intel Socket 2011 | Intel Socket 1155 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 32 nm | 32 nm |
| Transistors | 2,270 million | 1,160 million |
| Die size | 435 mm² | 216 mm² |
| Package | FC-LGA10 | FC-LGA10 |
| tCaseMax | 67°C | — |
Performance
| Frequency | 3.3 GHz | 3.5 GHz |
|---|---|---|
| Turbo clock | up to 3.9 GHz | up to 3.9 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 33.0x | 35.0x |
| Multiplier unlocked | Yes | No |
| Voltage | 1.35 V | — |
| TDP | 130 W | 95 W |
Architecture Details
| Vertical Segment | Desktop | Server/Workstation |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Nov 14th, 2011 | Apr 3rd, 2011 |
| Codename | Sandy Bridge-E | Sandy Bridge |
| Generation | Core i7 | Xeon E3 |
| Part | SR0H9SR0KF | SR00R |
| Memory support | DDR3 Quad-channel | DDR3 Dual-channel |
| ECC memory | No | Yes |
| PCI Express | Gen 3 | Gen 3, 16 Lanes(CPU only) |
Cores
| Total Cores | 6 | 4 |
|---|---|---|
| Total Threads | 12 | 8 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 15MB (shared) | 8MB (shared) |
Notes
| Notes | This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Extreme Edition label. C1 stepping (SR0H9) lacks VT-d. | — |
|---|
Features & Technologies
| AES-NI | Yes | Yes |
|---|---|---|
| AVX | Yes | Yes |
| EIST | Yes | Yes |
| HTT | Yes | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSSE3 | Yes | Yes |
| TXT | — | Yes |
| VT-d | Yes | Yes |
| VT-x | Yes | Yes |
| XD bit | Yes | Yes |
