Intel Xeon E5420 vs. Intel Xeon L5520

CPU Comparison, Reviews and Tests
Intel Xeon E5420
Intel Xeon L5520

In depth comparison and review of Intel Xeon E5420 and Intel Xeon L5520. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.

CPUs Specifications Comparison

Intel Xeon E5420 vs. Intel Xeon L5520 Benchmark Chart
GENERAL Intel Xeon E5420 Intel Xeon L5520
Product Type Processor Processor
PROCESSOR Intel Xeon E5420 Intel Xeon L5520
Type Intel Xeon E5420 Intel Xeon L5520
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA6 -
Compatible Processor Socket LGA771 Socket LGA1366 Socket
Power Efficiency - Low-Voltage (LV)
Core Voltage 0.85 V - 1.35 V 0.75 V - 1.35 V
Manufacturing Process 45 nm 45 nm
Thermal Design Power 80 W 60 W
Thermal Specification 67 °C 70 °C
Architecture Features Enhanced SpeedStep technology, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Thermal Monitoring Technologies, Idle States, Intel VT-x with Extended Page Tables (EPT) Enhanced SpeedStep technology, Demand Based Switching, Intel Virtualization Technology
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 4 threads 8 threads
Clock Speed (Frequency) 2.5 GHz 2.26 GHz
Bus Speed 1333 MHz 1066 MHz
64-bit Computing Yes Yes
CACHE MEMORY
Cache 12 MB 8 MB
Cache Level 1 Size - 256 KB
Cache Memory Details L2 - 12 MB L3 - 8 MB
Installed Size 12 MB 8 MB
Type Advanced Smart Cache Advanced Smart Cache
RAM
Installed RAM Size - 1066 MB
Technology - DDR3 SDRAM - 1066 MHz
EXPANSION & CONNECTIVITY Intel Xeon E5420 Intel Xeon L5520
Compatible Slots 1 x processor 1 x processor
MISCELLANEOUS Intel Xeon E5420 Intel Xeon L5520
Included Accessories Alcohol pad, thermal grease Heat pipe
Compliant Standards - RoHS
Service & Support Limited warranty - 1 year - on-site Limited warranty - 1 year
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