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qz51 (intel mobile pentium 4 538) Detail Information


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General information
TypeCPU / Microprocessor
FamilyIntel Mobile Pentium 4
Processor number 538
Part numberRK80546HE0881M
Processor markings80546HE0881M
Frequency (GHz)3.2
Bus speed (MHz) 533
Package type478-pin FC-mPGA4
Socket typeSocket 478 (mPGA478B)
Architecture / Microarchitecture / Other
CPUID0F41h
Core steppingE0
Processor corePrescott
Manufacturing technology (micron)0.09
L2 cache size (KB) 1024
Notes on sSpec QZ51
  • Engineering sample.
  • There is also QZ51ES Pentium III Tualatin processor in 370-pin(?) FC-PGA2 package. That processor may be marked Thermal.
  • Some parts may have core stepping D0 and CPUID 0F34h

Other S-Spec number