Intel Core 2 Quad Q9400S vs Intel Core i5-655K
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 1156 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 45 nm | 32 nm |
| Transistors | 456 million | 382 million |
| Die size | 2x 82 mm² | 81 mm² |
| Package | FC-LGA6 | FC-LGA10 |
| tCaseMax | 76°C | — |
Performance
| Frequency | 2.666 GHz | 3.2 GHz |
|---|---|---|
| Turbo clock | — | up to 3.466 GHz |
| Base clock | 333 MHz | 133 MHz |
| Multiplier | 8.0x | 24.0x |
| Multiplier unlocked | No | No |
| Voltage | 0.9 V | 1.4 V |
| TDP | 65 W | 73 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Jan 18th, 2009 | May 30th, 2010 |
| Codename | Yorkfield | Clarkdale |
| Generation | Core 2 Quad | Core i5 |
| Part | SLG9U | SLBXL |
| 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 | 6MB (shared) | 256K (per core) |
| Cache L3 | — | 4MB (shared) |
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 | Yes |
| SSE4.2 | — | Yes |
| SSSE3 | — | Yes |
| TBT | — | Yes |
| TXT | Yes | Yes |
| VT-d | — | Yes |
| VT-x | Yes | Yes |
| XD-Bit | — | Yes |
| iAMT2 | Yes | — |
