Intel Core 2 Quad Q8400S vs Intel Xeon E5503
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 1366 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 45 nm | 45 nm |
| Transistors | 456 million | 731 million |
| Die size | 2x 82 mm² | 263 mm² |
| Package | FC-LGA6 | FC-LGA8 |
| tCaseMax | 76°C | — |
Performance
| Frequency | 2.666 GHz | 2000 MHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 333 MHz | 133 MHz |
| Multiplier | 8.0x | 15.0x |
| Multiplier unlocked | No | No |
| Voltage | 0.9 V | 1.35 V |
| TDP | 65 W | 80 W |
Architecture Details
| Vertical Segment | Desktop | Server/Workstation |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Apr 19th, 2009 | Mar 16th, 2010 |
| Codename | Yorkfield | Gainestown |
| Generation | Core 2 Quad | Xeon |
| Part | SLGT7 | SLBKD |
| Memory support | DDR1, DDR2, DDR3 Dual-channel | DDR3 Triple-channel |
| ECC memory | No | Yes |
| PCI Express | Gen 2 | Gen 2 |
Cores
| Total Cores | 4 | 2 |
|---|---|---|
| Total Threads | 4 | 2 |
| SMP # CPUs | 1 | 2 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 4MB (shared) | 256K (per core) |
| Cache L3 | — | 4MB (shared) |
Features & Technologies
| EIST | Yes | Yes |
|---|---|---|
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | Yes | — |
| SSE4.2 | — | Yes |
| SSSE3 | — | Yes |
| TXT | — | Yes |
| VT-x | — | Yes |
| XD-Bit | — | Yes |
| iAMT2 | Yes | — |
