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slbbr (intel xeon l5420) Detail Information


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General information
TypeCPU / Microprocessor
FamilyIntel Xeon
Processor number L5420
Part numberAT80574JJ060N
BX80574L5420A
BX80574L5420P
Frequency (GHz)2.5
Bus speed (MHz) 1333
Package type771-land FC-LGA
Socket typeSocket 771 (LGA771)
Architecture / Microarchitecture / Other
CPUID1067Ah
Core steppingE0
Qualification sampleQFVZ
Previous steppingSLARP
Manufacturing technology (micron)0.045
Number of cores4
L2 cache size (KB) 12288
FeaturesEM64T technology
Enhanced SpeedStep technology
Execute disable bit
Virtualization technology
Core voltage (V) 1.212
Case temperature (°C) 57
Thermal Design Power (Watt) 50
Notes on sSpec SLBBR
  • OEM parts are available starting from Oct 6, 2008.
  • Boxed processors are available starting from Aug 29, 2008.
  • Changes in E0 stepping: new XSAVE and XRSTORE instructions, ACNT2 feature used for determining processor utilization, halide-free package.

Other S-Spec number