Autors: 
Type CPU / Microprocessor
Family Intel Pentium 4
Processor markings 1.6GHZ/256/400/1.75V
Frequency (GHz) 1.6
Bus speed (MHz) 400
Clock multiplier 16
Package type 478-pin FC-PGA2
Socket type Socket 478 (mPGA478B)
Architecture / Microarchitecture / Other
CPUID 0F12h
Core stepping D0
Qualification sample QFF9
Previous stepping SL5US
Processor core Willamette
Manufacturing technology (micron) 0.18
L2 cache size (KB) 256
Core voltage (V) 1.75
Case temperature (°C) 75