Intel Xeon E5420 vs. Intel Xeon W3520

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Xeon E5420 and Intel Xeon W3520. 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 W3520 Benchmark Chart
GENERAL Intel Xeon E5420 Intel Xeon W3520
Product Type Processor Processor
PROCESSOR Intel Xeon E5420 Intel Xeon W3520
Type Intel Xeon E5420 Intel Xeon W3520
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA6 FC-LGA8
Compatible Processor Socket LGA771 Socket LGA1366 Socket
Core Voltage 0.85 V - 1.35 V -
Manufacturing Process 45 nm 45 nm
Thermal Design Power 80 W 130 W
Thermal Specification 67 °C 67.9 °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, streaming SIMD extensions 2, Hyper-Threading Technology, integrated memory controller, streaming SIMD extensions 3, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel I/O Acceleration Technology, streaming SIMD extensions 4
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 4 threads 8 threads
Clock Speed (Frequency) 2.5 GHz 2.66 GHz
Max Turbo Speed - 2.93 GHz
Bus Speed 1333 MHz 1066 MHz
64-bit Computing Yes Yes
CACHE MEMORY
Cache 12 MB 8 MB
Cache Memory Details L2 - 12 MB L3 - 8 MB
Installed Size 12 MB 8 MB
Type Advanced Smart Cache Advanced Smart Cache
RAM
Technology - - ECC
EXPANSION & CONNECTIVITY Intel Xeon E5420 Intel Xeon W3520
Interfaces - - GT5
Compatible Slots 1 x processor 1 x processor
MISCELLANEOUS Intel Xeon E5420 Intel Xeon W3520
Included Accessories Alcohol pad, thermal grease -
Service & Support Limited warranty - 1 year - on-site Limited warranty - 90 days
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