Hardware Museum

Over 20 years of PC history

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Intel Pentium III 1133Intel Celeron 566
Code nameCoppermineCoppermine
Base clock1133 MHz566 MHz (0.5×)
Turbo full / half / single- | - | - - | - | -
Technology180 nm180 nm
Transistors28 million28 million
Die size105 mm2105 mm2
Cores / threads1 / 1 1 / 1
L1 data cache1 × 16 kB1 × 16 kB
L1 inst. cache1 × 16 kB1 × 16 kB
L2 cache1 × 256 kB1 × 128 kB (0.5×)
L3 cache--
Bus typeSDR, 133 MHz, 64 bitSDR, 66 MHz, 64 bit
Bus bandwith1064 MB/s528 MB/s (0.5×)
SocketSocket 370Socket 370
Voltage1.7 V1.5 V
TDP29 W12 W (0.41×)