Intel Xeon E3-1275V2 vs. Intel Xeon E5420

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Xeon E3-1275V2 and Intel Xeon E5420. 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 E3-1275V2 vs. Intel Xeon E5420 Benchmark Chart
GENERAL Intel Xeon E3-1275V2 Intel Xeon E5420
Product Type Processor Processor
PROCESSOR Intel Xeon E3-1275V2 Intel Xeon E5420
Type Intel Xeon E3-1275V2 Intel Xeon E5420
ARCHITECTURE
Processor Qty 1 1
Packaging Type - FC-LGA6
Compatible Processor Socket LGA1155 Socket LGA771 Socket
Core Voltage - 0.85 V - 1.35 V
Manufacturing Process 22 nm 45 nm
Thermal Design Power 69 W 80 W
Thermal Specification - 67 °C
PCI Express Revision 3.0 -
PCI Express Configurations 1x16+1x4, 1x8+3x4, 2x8+1x4 -
Architecture Features Enhanced SpeedStep technology, Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States, Intel VT-x with Extended Page Tables (EPT) 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)
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 8 threads 4 threads
Clock Speed (Frequency) 3.5 GHz 2.5 GHz
Max Turbo Speed 3.9 GHz -
Bus Speed - 1333 MHz
64-bit Computing Yes Yes
CACHE MEMORY
Cache 8 MB 12 MB
Cache Memory Details Smart Cache - 8 MB L2 - 12 MB
Installed Size 8 MB 12 MB
Type - Advanced Smart Cache
INTEGRATED GRAPHICS (GPU) Intel Xeon E3-1275V2 Intel Xeon E5420
Type Intel HD Graphics P4000 -
Base Frequency 650 MHz -
Max Dynamic Frequency 1.25 GHz -
Features Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video -
EXPANSION & CONNECTIVITY Intel Xeon E3-1275V2 Intel Xeon E5420
Compatible Slots - 1 x processor
MISCELLANEOUS Intel Xeon E3-1275V2 Intel Xeon E5420
Included Accessories - Alcohol pad, thermal grease
Service & Support Limited warranty - 3 years Limited warranty - 1 year - on-site
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