Intel Core i7-3920XM vs Intel Xeon E5649
Physical Specifications
| Socket | Intel Socket G2 (988B) | Intel Socket 1366 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 22 nm | 32 nm |
| Transistors | 1,400 million | 1,170 million |
| Die size | 160 mm² | 239 mm² |
| Package | FC-PGA12F | FC-LGA10 |
Performance
| Frequency | 2.9 GHz | 2.533 GHz |
|---|---|---|
| Turbo clock | up to 3.8 GHz | up to 2.8 GHz |
| Base clock | 100 MHz | 133 MHz |
| Multiplier | 29.0x | 19.0x |
| Multiplier unlocked | Yes | No |
| TDP | 55 W | 80 W |
| Voltage | — | 1.35 V |
Architecture Details
| Vertical Segment | Mobile | Server/Workstation |
|---|---|---|
| Production status | unknown | End-of-life |
| Release date | Apr 29th, 2012 | Feb 14th, 2011 |
| Codename | Ivy Bridge | Westmere-EP |
| Generation | Core i7 | Xeon |
| Part | SR0MHSR0T2 | SLBZ8 |
| Memory support | DDR3 Dual-channel | DDR3 Triple-channel |
| ECC memory | No | Yes |
| PCI Express | — | Gen 2 |
Cores
| Total Cores | 4 | 6 |
|---|---|---|
| Total Threads | 8 | 12 |
| SMP # CPUs | 1 | 2 |
| Integrated graphics | Intel HD 4000 | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 8MB (shared) | 12MB (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. Intel HD 4000 frequency: 650-1300MHz | — |
|---|
Features & Technologies
| 5.86GT/s QPI | — | Yes |
|---|---|---|
| AES-NI | Yes | Yes |
| AVX | 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 | Yes |
| VT-d | Yes | — |
| VT-x | Yes | Yes |
| XD bit | Yes | — |
| XD-Bit | — | Yes |
