Hardware museum

Over 20 years of PC history

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Intel Pentium 4 2.0 GHzIntel Pentium 4 1.5 GHz (socket 423)
Code nameWillametteWillamette
Base clock2000 MHz1500 MHz (0.75×)
Turbo full / half / single- | - | - - | - | -
Technology180 nm180 nm
Transistors42 milion42 milion
Die size217 mm2217 mm2
Cores / threads1 / 1 1 / 1
L1 data cache1 × 8 kB1 × 8 kB
L1 inst. cache1 × 12 kB1 × 12 kB
L2 cache1 × 256 kB1 × 256 kB
L3 cache--
Bus typeQDR, 400 MHz, 64 bitQDR, 400 MHz, 64 bit
Bus bandwith3200 MB/s3200 MB/s
SocketSocket 478Socket 423
Voltage-1.7 V
TDP75 W58 W (0.77×)