Socket Family Number Core Freq FSB Cache BIOS 478 Pentium 4 n/a Northwood 3.40 GHz 800MHz 512KB All 478 Pentium 4 n/a Prescott 3.40 GHz 800MHz 1MB All 478 Pentium 4 n/a Northwood 3.20 GHz 800MHz 512KB All 478 Pentium 4 n/a Prescott 3.20 GHz 800MHz 1MB All 478 Pentium 4 n/a Northwood 3.06 GHz 533MHz 512KB All 478 Pentium 4 n/a Northwood 3.00 GHz 800MHz 512KB All 478 Pentium 4 n/a Prescott 3.00 GHz 800MHz 1MB All 478 Pentium 4 n/a Northwood 2.80 GHz 800MHz 512KB All 478 Pentium 4 n/a Prescott 2.80 GHz 800MHz 1MB All 478 Pentium 4 n/a Northwood 2.80 GHz 533MHz 512KB All 478 Pentium 4 n/a Prescott 2.80 GHz 533MHz 1MB All 478 Pentium 4 n/a Northwood 2.66 GHz 533MHz 512KB All 478 Pentium 4 n/a Northwood 2.60 GHz 800MHz 512KB All 478 Pentium 4 n/a Northwood 2.60 GHz 400MHz 512KB All 478 Pentium 4 n/a Northwood 2.53 GHz 533MHz 512KB All 478 Pentium 4 n/a Northwood 2.50 GHz 400MHz 512KB All 478 Pentium 4 n/a Northwood 2.40 GHz 800MHz 512KB All 478 Pentium 4 n/a Northwood 2.40 GHz 533MHz 512KB All 478 Pentium 4 n/a Prescott 2.40 GHz 533MHz 1MB All 478 Pentium 4 n/a Northwood 2.40 GHz 400MHz 512KB All 478 Pentium 4 n/a Northwood 2.26 GHz 533MHz 512KB All 478 Pentium 4 n/a Northwood 2.20 GHz 400MHz 512KB All 478 Pentium 4 n/a Northwood 2.00 GHz 400MHz 512KB All 478 Pentium 4 n/a Willamette 1.90 GHz 400MHz 256KB All 478 Pentium 4 n/a Willamette 1.80 GHz 400MHz 256KB All 478 Pentium 4 n/a Willamette 1.70 GHz 400MHz 256KB All 478 Pentium 4 G1 Prescott 3.40 GHz 800MHz 1MB P2.10 478 Celeron D 350 Prescott 3.20 GHz 533MHz 256KB P1.80 478 Celeron D 350(G1) Prescott 3.20 GHz 533MHz 256KB P2.10 478 Celeron D 345 Prescott 3.06 GHz 533MHz 256KB All 478 Celeron D 340 Prescott 2.93 GHz 533MHz 256KB All 478 Celeron D 335 Prescott 2.80 GHz 533MHz 256KB All 478 Celeron D 330 Prescott 2.66 GHz 533MHz 256KB All 478 Celeron D 325 Prescott 2.53 GHz 533MHz 256KB All 478 Celeron D 320 Prescott 2.40 GHz 533MHz 256KB All 478 Celeron D 315 Prescott 2.26 GHz 533MHz 256KB All 478 Celeron D 310 Prescott 2.13 GHz 533MHz 256KB P2.00 478 Celeron n/a Northwood 2.80 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.70 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.60 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.50 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.40 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.30 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.20 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.10 GHz 400MHz 128KB All 478 Celeron n/a Northwood 2.00 GHz 400MHz 128KB All 478 Celeron n/a Willamette 1.80 GHz 400MHz 128KB All 478 Celeron n/a Willamette 1.70 GHz 400MHz 128KB All