低功耗， 四核心，45纳米，超强性能

基本参数
产品型号 Xeon L5420 2.5G
接口类型 Socket 771
核心代号 Harpertown
核心数量 四核
生产工艺 0.045
主频 2500MHz
二级缓存 12288
指令集支持 MMX,SSE,SSE2,SSE3,SSSE3,SSE4.1

General information
Type CPU / Microprocessor
Family Intel Xeon
Processor number  L5420
Part number EU80574JJ060N
BX80574L5420A
BX80574L5420P
Frequency (GHz) 2.5
Bus speed (MHz)  1333
Package type 771-land FC-LGA8
Socket type Socket 771 (LGA771)
 
Architecture / Microarchitecture / Other
CPUID 10676h
Core stepping C0
Next stepping QFVZ
Next production stepping SLBBR
Processor core Harpertown
Manufacturing technology (micron) 0.045
Number of cores 4
L2 cache size (KB)  12288
Features 
EM64T technology
Enhanced SpeedStep technology Execute disable bit
Thermal Monitor 2
Virtualization technology

Core voltage (V)  1.35
Case temperature (°C)  57
Thermal Design Power (Watt)  50
 
Notes on sSpec SLARP
This part has Enhanced Halt State enabled.
Demand Based Switching