Over 20 years of PC history
| Intel Pentium 4 Extreme Edition 3.73 | Intel Pentium 4 640 | |
|---|---|---|
| Code name | Prescott (2 MB L2) | Prescott (2 MB L2) |
| Base clock | 3733 MHz | 3200 MHz (0.86×) |
| Turbo full / half / single | - | - | - | - | - | - |
| Technology | 90 nm | 90 nm |
| Transistors | 169 million | 169 million |
| Die size | 135 mm2 | 135 mm2 |
| Cores / threads | 1 / 2 | 1 / 2 |
| L1 data cache | 1 × 16 kB | 1 × 16 kB |
| L1 inst. cache | 1 × 12 kB | 1 × 12 kB |
| L2 cache | 1 × 2048 kB | 1 × 2048 kB |
| L3 cache | - | - |
| Bus type | QDR, 1066 MHz, 64 bit | QDR, 800 MHz, 64 bit |
| Bus bandwith | 8528 MB/s | 6400 MB/s (0.75×) |
| Socket | Socket 775 | Socket 775 |
| Voltage | - | 1.35 V |
| TDP | 115 W | 84 W (0.73×) |