Intel Xeon E3-1275 v3 vs Intel Xeon E5620

Table of Contents

Physical Specifications

Socket Intel Socket 1150 Intel Socket 1366
Foundry Intel Intel
Process size 22 nm 32 nm
Transistors 1,400 million 1,170 million
Die size 160 mm² 239 mm²
Package FC-LGA12C FC-LGA10

Performance

Frequency 3.5 GHz 2.4 GHz
Turbo clock up to 3.9 GHz up to 2.666 GHz
Base clock 100 MHz 133 MHz
Multiplier 35.0x 18.0x
Multiplier unlocked No No
TDP 84 W 80 W
Voltage 1.35 V

Architecture Details

Vertical Segment Server/Workstation Server/Workstation
Production status unknown End-of-life
Release date Jun 2nd, 2013 Mar 16th, 2010
Codename Haswell-WS Westmere-EP
Generation Xeon E3 Xeon
Part SR14S SLBV4
Memory support DDR3, DDR4 Dual-channel DDR3 Triple-channel
ECC memory Yes Yes
PCI Express Gen 3 Gen 2

Cores

Total Cores 4 4
Total Threads 8 8
SMP # CPUs 1 2
Integrated graphics Intel HD P4600

Cache

Cache L1 64K (per core) 64K (per core)
Cache L2 256K (per core) 256K (per core)
Cache L3 8MB (shared) 12MB (shared)

Features & Technologies

5.86GT/s QPI Yes
AES-NI Yes Yes
AVX Yes
AVX2 Yes
BMI1 Yes
BMI2 Yes
ECC Yes
EIST Yes Yes
F16C Yes
FMA3 Yes
HTT Yes Yes
Intel 64 Yes Yes
MMX Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4.2 Yes Yes
SSSE3 Yes Yes
TXT Yes Yes
VT-d Yes
VT-x Yes Yes
XD bit Yes
XD-Bit Yes
vPro Yes
x8 SDDC Yes

Compare

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