Intel Core i7-975 vs Intel Xeon E5-4603
Physical Specifications
| Socket | Intel Socket 1366 | Intel Socket 2011 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 45 nm | 32 nm |
| Transistors | 731 million | 1,270 million |
| Die size | 263 mm² | 294 mm² |
| Package | FC-LGA8 | FC-LGA10 |
Performance
| Frequency | 3.333 GHz | 2000 MHz |
|---|---|---|
| Turbo clock | up to 3.6 GHz | — |
| Base clock | 133 MHz | 100 MHz |
| Multiplier | 25.0x | 20.0x |
| Multiplier unlocked | Yes | No |
| Voltage | 1.375 V | 1.35 V |
| TDP | 130 W | 95 W |
Architecture Details
| Vertical Segment | Desktop | Server/Workstation |
|---|---|---|
| Production status | End-of-life | unknown |
| Release date | Jun 2nd, 2009 | May 14th, 2012 |
| Codename | Bloomfield | Sandy Bridge-EP |
| Generation | Core i7 | Xeon E5 |
| Part | SLBEQ | SR0LF |
| Memory support | DDR3 Triple-channel | DDR3 Quad-channel |
| ECC memory | No | Yes |
| PCI Express | Gen 2 | Gen 3 |
Cores
| Total Cores | 4 | 4 |
|---|---|---|
| Total Threads | 8 | 8 |
| SMP # CPUs | 1 | 4 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 8MB (shared) | 10MB (shared) |
Notes
| Notes | This processor comes with an unlocked FSB multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Extreme Edition label. | — |
|---|
Features & Technologies
| 8.0GT/s QPI | — | Yes |
|---|---|---|
| AES-NI | — | Yes |
| AVX | — | Yes |
| EIST | Yes | Yes |
| HTT | Yes | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SMT | Yes | — |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSSE3 | — | Yes |
| TXT | Yes | Yes |
| VT-d | — | Yes |
| VT-x | Yes | Yes |
| XD bit | — | Yes |
| XD-Bit | Yes | — |
