Intel Core 2 Quad Q9400 vs Intel Pentium 4 1.5
Physical Specifications
| Socket | Intel Socket 775 | Intel Socket 478 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 45 nm | 180 nm |
| Transistors | 456 million | 42 million |
| Die size | 2x 81 mm² | 217 mm² |
| Package | FC-LGA6 | µPGA |
| tCaseMax | 71°C | 73°C |
Performance
| Frequency | 2.666 GHz | 1500 MHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 333 MHz | 100 MHz |
| Multiplier | 8.0x | 15.0x |
| Multiplier unlocked | No | No |
| Voltage | 1.11 V | 1.75 V |
| TDP | 95 W | 58 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Aug 10th, 2008 | Aug 27th, 2001 |
| Codename | Yorkfield | Willamette |
| Generation | Core 2 Quad | Pentium 4 |
| Part | SLB6B | SL5TJSL5N8SL59VSL6BASL62YSL5UF |
| Memory support | DDR1, DDR2, DDR3 Dual-channel | DDR1, DDR2 |
| ECC memory | No | No |
| PCI Express | Gen 2 | — |
Cores
| Total Cores | 4 | 1 |
|---|---|---|
| Total Threads | 4 | 1 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 8K |
|---|---|---|
| Cache L2 | 6MB (shared) | 256K |
Features & Technologies
| EIST | Yes | — |
|---|---|---|
| Intel 64 | Yes | — |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | — |
| SSE4.1 | Yes | — |
| TXT | Yes | — |
| VT-x | Yes | — |
| iAMT2 | Yes | — |
