Intel Xeon E3-1275V3 vs. Intel Xeon E5520

CPU Comparison, Reviews and Tests

Side by side comparison and review of Intel Xeon E3-1275V3 and Intel Xeon E5520. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.

CPUs Specifications Comparison

Intel Xeon E3-1275V3 vs. Intel Xeon E5520 Benchmark Chart
GENERAL Intel Xeon E3-1275V3 Intel Xeon E5520
Product Type Processor Processor
PROCESSOR Intel Xeon E3-1275V3 Intel Xeon E5520
Type Intel Xeon E3-1275V3 Intel Xeon E5520
ARCHITECTURE
Processor Qty 1 1
Packaging Type - FC-LGA8
Compatible Processor Socket LGA1150 Socket LGA1366 Socket
Core Voltage - 1.4 V
Manufacturing Process 22 nm 45 nm
Thermal Design Power 84 W 80 W
Thermal Specification - 76 °C
PCI Express Revision 3.0 -
PCI Express Configurations 1x16, 2x8, 1x8, 2x4 -
PCI Express Lanes Qty 16 -
Architecture Features 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 Hyper-Threading Technology, Intel Intelligent Power Technology, Intel Data Center Manager
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 8 threads 8 threads
Clock Speed (Frequency) 3.5 GHz 2.26 GHz
Max Turbo Speed 3.9 GHz 2.53 GHz
Bus Speed - 1066 MHz
64-bit Computing - Yes
CACHE MEMORY
Cache 8 MB 8 MB
Cache Memory Details Smart Cache - 8 MB Smart Cache - 8 MB
Installed Size 8 MB 8 MB
Type - Advanced Smart Cache
RAM
Technology - DDR3 SDRAM - 1066 MHz
INTEGRATED GRAPHICS (GPU) Intel Xeon E3-1275V3 Intel Xeon E5520
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 E3-1275V3 Intel Xeon E5520
Compatible Slots - 1 x processor
MISCELLANEOUS Intel Xeon E3-1275V3 Intel Xeon E5520
Included Accessories - Heat sink
Compliant Standards - RoHS
Service & Support - 1-year warranty
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