Intel Xeon E5420 vs. Intel Xeon E3-1275V3

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Xeon E5420 and Intel Xeon E3-1275V3. 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 E3-1275V3 Benchmark Chart
GENERAL Intel Xeon E5420 Intel Xeon E3-1275V3
Product Type Processor Processor
PROCESSOR Intel Xeon E5420 Intel Xeon E3-1275V3
Type Intel Xeon E5420 Intel Xeon E3-1275V3
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA6 -
Compatible Processor Socket LGA771 Socket LGA1150 Socket
Core Voltage 0.85 V - 1.35 V -
Manufacturing Process 45 nm 22 nm
Thermal Design Power 80 W 84 W
Thermal Specification 67 °C -
PCI Express Revision - 3.0
PCI Express Configurations - 1x16, 2x8, 1x8, 2x4
PCI Express Lanes Qty - 16
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, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel Anti-Theft Technology, 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), Intel Identity Protection Technology, Intel Secure Key, Intel Advanced Vector Extensions 2 (AVX2.0), Intel TSX-NI, Intel Stable Image Platform Program (SIPP), Intel OS Guard
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 4 threads 8 threads
Clock Speed (Frequency) 2.5 GHz 3.5 GHz
Max Turbo Speed - 3.9 GHz
Bus Speed 1333 MHz -
64-bit Computing Yes -
CACHE MEMORY
Cache 12 MB 8 MB
Cache Memory Details L2 - 12 MB Smart Cache - 8 MB
Installed Size 12 MB 8 MB
Type Advanced Smart Cache -
INTEGRATED GRAPHICS (GPU) Intel Xeon E5420 Intel Xeon E3-1275V3
Type - Intel HD Graphics P4600
Base Frequency - 350 MHz
Max Dynamic Frequency - 1.25 GHz
Features - Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Triple Display Capable
EXPANSION & CONNECTIVITY Intel Xeon E5420 Intel Xeon E3-1275V3
Compatible Slots 1 x processor -
MISCELLANEOUS Intel Xeon E5420 Intel Xeon E3-1275V3
Included Accessories Alcohol pad, thermal grease -
Service & Support Limited warranty - 1 year - on-site -
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