Intel Core 2 Extreme QX6700 vs Intel Xeon L5520
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 1366 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 65 nm | 45 nm |
| Transistors | 582 million | 731 million |
| Die size | 2x 143 mm² | 263 mm² |
| Package | FC-LGA6 | FC-LGA8 |
| tCaseMax | 64°C | — |
Performance
| Frequency | 2.666 GHz | 2.266 GHz |
|---|---|---|
| Turbo clock | — | up to 2.533 GHz |
| Base clock | 266 MHz | 133 MHz |
| Multiplier | 10.0x | 17.0x |
| Multiplier unlocked | Yes | No |
| Voltage | 1.34 V | 1.35 V |
| TDP | 130 W | 60 W |
Architecture Details
| Vertical Segment | Desktop | Server/Workstation |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Nov 1st, 2006 | Mar 30th, 2009 |
| Codename | Kentsfield | Gainestown |
| Generation | Core 2 Extreme | Xeon |
| Part | SL9UL | SLBFA |
| Memory support | DDR1, DDR2, DDR3 Dual-channel | DDR3 Triple-channel |
| ECC memory | No | Yes |
| PCI Express | Gen 2 | Gen 2 |
Cores
| Total Cores | 4 | 4 |
|---|---|---|
| Total Threads | 4 | 8 |
| SMP # CPUs | 1 | 2 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 8MB (shared) | 256K (per core) |
| Cache L3 | — | 8MB (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
| EIST | Yes | Yes |
|---|---|---|
| HTT | — | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | — | Yes |
| SSSE3 | Yes | Yes |
| TXT | — | Yes |
| VT-x | Yes | Yes |
| XD-Bit | — | Yes |
| iAMT2 | Yes | — |
