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Intel Pentium 4 Extreme Edition 3.73Intel Pentium 4 640
Code namePrescott (2 MB L2)Prescott (2 MB L2)
Base clock3733 MHz3200 MHz (0.86×)
Turbo full / half / single- | - | - - | - | -
Technology90 nm90 nm
Transistors169 million169 million
Die size135 mm2135 mm2
Cores / threads1 / 2 1 / 2
L1 data cache1 × 16 kB1 × 16 kB
L1 inst. cache1 × 12 kB1 × 12 kB
L2 cache1 × 2048 kB1 × 2048 kB
L3 cache--
Bus typeQDR, 1066 MHz, 64 bitQDR, 800 MHz, 64 bit
Bus bandwith8528 MB/s6400 MB/s (0.75×)
SocketSocket 775Socket 775
Voltage-1.35 V
TDP115 W84 W (0.73×)