Intel Xeon E7520 vs. Intel Xeon E3-1275V3

CPU Comparison, Reviews and Tests

Detailed comparison and review of Intel Xeon E7520 and Intel Xeon E3-1275V3. With our comprehensive overview, you can simply compare overall performance, cache sizes, RAM, power efficiency, architecture, but also other key features of both processors and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the processor that best fits your needs and expectations.

CPUs Specifications Comparison

Intel Xeon E7520 vs. Intel Xeon E3-1275V3 Benchmark Chart
GENERAL Intel Xeon E7520 Intel Xeon E3-1275V3
Product Type Processor Processor
PROCESSOR Intel Xeon E7520 Intel Xeon E3-1275V3
Type Intel Xeon E7520 Intel Xeon E3-1275V3
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA1567 Socket LGA1150 Socket
Manufacturing Process 45 nm 22 nm
Thermal Design Power 95 W 84 W
Thermal Specification 70 °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 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 8 threads 8 threads
Clock Speed (Frequency) 1.87 GHz 3.5 GHz
Max Turbo Speed - 3.9 GHz
64-bit Computing Yes -
CACHE MEMORY
Cache 18 MB 8 MB
Cache Memory Details L3 - 18 MB Smart Cache - 8 MB
Installed Size 18 MB 8 MB
INTEGRATED GRAPHICS (GPU) Intel Xeon E7520 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 E7520 Intel Xeon E3-1275V3
Compatible Slots 2 x processor -
MISCELLANEOUS Intel Xeon E7520 Intel Xeon E3-1275V3
Compliant Standards RoHS -
Service & Support Limited warranty - 3 years -
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