Intel Xeon E5645 vs Intel Xeon X5677

Table of Contents

Physical Specifications

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

Performance

Frequency 2.4 GHz 3.466 GHz
Turbo clock up to 2.666 GHz up to 3.733 GHz
Base clock 133 MHz 133 MHz
Multiplier 18.0x 26.0x
Multiplier unlocked No No
Voltage 1.35 V 1.35 V
TDP 80 W 130 W

Architecture Details

Vertical Segment Server/Workstation Server/Workstation
Production status End-of-life End-of-life
Release date Mar 16th, 2010 Mar 16th, 2010
Codename Westmere-EP Westmere-EP
Generation Xeon Xeon
Part SLBWZ SLBV9
Memory support DDR3 Triple-channel DDR3 Triple-channel
ECC memory Yes Yes
PCI Express Gen 2 Gen 2

Cores

Total Cores 6 4
Total Threads 12 8
SMP # CPUs 2 2
Integrated graphics

Cache

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

Features & Technologies

5.86GT/s QPI Yes
6.4GT/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-x Yes Yes
XD-Bit Yes Yes

Compare

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