Intel Core 2 Extreme QX9770 vs Intel Core 2 Extreme QX9775
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 771 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 45 nm | 45 nm |
| Transistors | 820 million | 820 million |
| Die size | 2x 107 mm² | 2x 107 mm² |
| Package | FC-LGA4 | FC-LGA6 |
| tCaseMax | 55°C | 63°C |
Performance
| Frequency | 3.2 GHz | 3.2 GHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 400 MHz | 400 MHz |
| Multiplier | 8.0x | 8.0x |
| Multiplier unlocked | Yes | Yes |
| Voltage | 1.35 V | 1.35 V |
| TDP | 136 W | 150 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Mar 24th, 2008 | Mar 24th, 2008 |
| Codename | Yorkfield | Yorkfield |
| Generation | Core 2 Extreme | Core 2 Extreme |
| Part | SLAWM | EU80574XL088N |
| Memory support | DDR1, DDR2, DDR3 Dual-channel | DDR2 |
| ECC memory | No | No |
| PCI Express | 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 | 12MB (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. | Being an Extreme Edition processor, it features an unlocked FSB multiplier that allows users to set the multiplier value above its shipped value. Unlike the QX9770, this chip uses the LGA-771 socket and is only compatible with Intel D5400XS "Skulltrail", |
|---|
Features & Technologies
| EIST | Yes | Yes |
|---|---|---|
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | Yes | Yes |
| SSSE3 | Yes | Yes |
| VT-x | Yes | Yes |
