Intel Core i7-3970X vs Intel Xeon L5640

Table of Contents

Physical Specifications

Socket Intel Socket 2011 Intel Socket 1366
Foundry Intel Intel
Process size 32 nm 32 nm
Transistors 2,270 million 1,170 million
Die size 435 mm² 239 mm²
Package FC-LGA10 FC-LGA10
tCaseMax 70°C

Performance

Frequency 3.5 GHz 2.266 GHz
Turbo clock up to 4 GHz up to 2.8 GHz
Base clock 100 MHz 133 MHz
Multiplier 35.0x 17.0x
Multiplier unlocked Yes No
Voltage 1.35 V 1.35 V
TDP 150 W 60 W

Architecture Details

Vertical Segment Desktop Server/Workstation
Production status unknown End-of-life
Release date Nov 1st, 2012 Mar 16th, 2010
Codename Sandy Bridge-E Westmere-EP
Generation Core i7 Xeon
Part SR0WR SLBV8
Memory support DDR3 Quad-channel DDR3 Triple-channel
ECC memory No Yes
PCI Express Gen 3 Gen 2

Cores

Total Cores 6 6
Total Threads 12 12
SMP # CPUs 1 2
Integrated graphics

Cache

Cache L1 64K (per core) 64K (per core)
Cache L2 256K (per core) 256K (per core)
Cache L3 15MB (shared) 12MB (shared)

Notes

Notes This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Extreme Edition label.

Features & Technologies

5.86GT/s QPI Yes
AES-NI Yes Yes
AVX 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
VT-d Yes
VT-x Yes Yes
XD bit Yes
XD-Bit Yes

Compare

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