Intel Xeon E5-1620 vs Intel Xeon E5620

Physical Specifications

Socket Intel Socket 2011 Intel Socket 1366
Foundry Intel Intel
Process size 32 nm 32 nm
Transistors 1,270 million 1,170 million
Die size 294 mm² 239 mm²
Package FC-LGA10 FC-LGA10


Frequency 3.6 GHz 2.4 GHz
Turbo clock up to 3.8 GHz up to 2.666 GHz
Base clock 100 MHz 133 MHz
Multiplier 36.0x 18.0x
Multiplier unlocked No No
Voltage 1.35 V 1.35 V
TDP 130 W 80 W

Architecture Details

Vertical Segment Server/Workstation Server/Workstation
Production status unknown End-of-life
Release date Mar 6th, 2012 Mar 16th, 2010
Codename Sandy Bridge-E Westmere-EP
Generation Xeon E5 Xeon
Memory support DDR3 Quad-channel DDR3 Triple-channel
ECC memory Yes Yes
PCI Express Gen 3 Gen 2


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


Cache L1 64K (per core) 64K (per core)
Cache L2 256K (per core) 256K (per core)
Cache L3 10MB (shared) 12MB (shared)

Features & Technologies

5.86GT/s QPI Yes
AES-NI Yes Yes
EIST Yes 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


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