Intel Core 2 Extreme QX6850 vs Intel Core 2 Extreme QX9770
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 775 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 65 nm | 45 nm |
| Transistors | 582 million | 820 million |
| Die size | 2x 143 mm² | 2x 107 mm² |
| Package | FC-LGA6 | FC-LGA4 |
| tCaseMax | 64°C | 55°C |
Performance
| Frequency | 3 GHz | 3.2 GHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 333 MHz | 400 MHz |
| Multiplier | 9.0x | 8.0x |
| Multiplier unlocked | Yes | Yes |
| Voltage | 1.34 V | 1.35 V |
| TDP | 130 W | 136 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Jul 15th, 2007 | Mar 24th, 2008 |
| Codename | Kentsfield | Yorkfield |
| Generation | Core 2 Extreme | Core 2 Extreme |
| Part | SLAFN | SLAWM |
| Memory support | DDR1, DDR2, DDR3 Dual-channel | DDR1, DDR2, DDR3 Dual-channel |
| ECC memory | No | No |
| PCI Express | Gen 2 | Gen 2 |
Cores
| Total Cores | 4 | 4 |
|---|---|---|
| Total Threads | 4 | 4 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 8MB (shared) | 12MB (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. | 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 |
|---|---|---|
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | — | Yes |
| SSSE3 | — | Yes |
| VT-x | Yes | Yes |
| iAMT2 | Yes | — |
