Intel Xeon E5420 vs. Intel Xeon E5603

CPU Comparison, Reviews and Tests
Intel Xeon E5420
Intel Xeon E5603

In depth comparison and review of Intel Xeon E5420 and Intel Xeon E5603. 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 E5603 Benchmark Chart
GENERAL Intel Xeon E5420 Intel Xeon E5603
Product Type Processor Processor
PROCESSOR Intel Xeon E5420 Intel Xeon E5603
Type Intel Xeon E5420 Intel Xeon E5603
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA6 -
Compatible Processor Socket LGA771 Socket LGA1366 Socket
Core Voltage 0.85 V - 1.35 V -
Manufacturing Process 45 nm 32 nm
Thermal Design Power 80 W 80 W
Thermal Specification 67 °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) Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 4 threads 4 threads
Clock Speed (Frequency) 2.5 GHz 1.6 GHz
Bus Speed 1333 MHz -
64-bit Computing Yes Yes
CACHE MEMORY
Cache 12 MB 4 MB
Cache Memory Details L2 - 12 MB Smart Cache - 4 MB
Installed Size 12 MB 4 MB
Type Advanced Smart Cache -
EXPANSION & CONNECTIVITY Intel Xeon E5420 Intel Xeon E5603
Compatible Slots 1 x processor 1 x processor
MISCELLANEOUS Intel Xeon E5420 Intel Xeon E5603
Included Accessories Alcohol pad, thermal grease Heat sink
Service & Support Limited warranty - 1 year - on-site Limited warranty - 3 years
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