Intel Core 2 Extreme QX6700 vs Intel Core i5-660
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 1156 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 65 nm | 32 nm |
| Transistors | 582 million | 382 million |
| Die size | 2x 143 mm² | 81 mm² |
| Package | FC-LGA6 | FC-LGA10 |
| tCaseMax | 64°C | — |
Performance
| Frequency | 2.666 GHz | 3.333 GHz |
|---|---|---|
| Turbo clock | — | up to 3.6 GHz |
| Base clock | 266 MHz | 133 MHz |
| Multiplier | 10.0x | 25.0x |
| Multiplier unlocked | Yes | No |
| Voltage | 1.34 V | 1.4 V |
| TDP | 130 W | 73 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Nov 1st, 2006 | Jan 7th, 2010 |
| Codename | Kentsfield | Clarkdale |
| Generation | Core 2 Extreme | Core i5 |
| Part | SL9UL | SLBLVSLBTK |
| Memory support | DDR1, DDR2, DDR3 Dual-channel | DDR3 Dual-channel |
| ECC memory | No | No |
| PCI Express | Gen 2 | Gen 2, 16 Lanes(CPU only) |
Cores
| Total Cores | 4 | 2 |
|---|---|---|
| Total Threads | 4 | 4 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | Intel HD |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 8MB (shared) | 256K (per core) |
| Cache L3 | — | 4MB (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 | — |
|---|---|---|
| HTT | — | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4 | — | Yes |
| SSE4.1 | — | Yes |
| SSE4.2 | — | Yes |
| SSSE3 | Yes | Yes |
| TBT | — | Yes |
| TXT | — | Yes |
| VT-d | — | Yes |
| VT-x | Yes | Yes |
| XD-Bit | — | Yes |
| iAMT2 | Yes | — |
