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Differences What are the advantages of each

Front view of Intel Xeon E5-2670

Reasons to consider the
Intel Xeon E5-2670

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Much better performance per watt 7.31 pt/W vs 3.29 pt/W Around 2.2x better performance per watt
Much higher Maximum operating temperature 80 °C vs 77.8 °C Around 5% higher Maximum operating temperature
Lower typical power consumption 93.44W vs 109.69W Around 15% lower typical power consumption
Lower annual commercial energy cost 100.74 $/year vs 118.26 $/year Around 15% lower annual commercial energy cost
Lower annual home energy cost 27.7 $/year vs 32.52 $/year Around 15% lower annual home energy cost
Front view of Intel Xeon E5-2667 v3

Reasons to consider the
Intel Xeon E5-2667 v3

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Much higher clock speed 3.2 GHz vs 2.6 GHz Around 25% higher clock speed
Higher turbo clock speed 3.6 GHz vs 3.3 GHz Around 10% higher turbo clock speed
Supports more RAM 786,432 MB vs 393,216 MB Supports 2x more RAM
Significantly better overclocked clock speed (Air) 3.44 GHz vs 3.13 GHz More than 10% better overclocked clock speed (Air)
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jul, 2014 vs Mar, 2012 Release date over 2 years later
Better overclocked clock speed (Water) 3.2 GHz vs 3.08 GHz Around 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2670 vs E5-2667 v3

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Xeon E5-2670  vs
E5-2667 v3 
Clock speed 2.6 GHz 3.2 GHz
Turbo clock speed 3.3 GHz 3.6 GHz
Cores Octa core Octa core


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 115W 135W
Annual home energy cost 27.7 $/year 32.52 $/year
Annual commercial energy cost 100.74 $/year 118.26 $/year
Performance per watt 7.31 pt/W 3.29 pt/W
Typical power consumption 93.44W 109.69W


Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 76,800 MB/s
Transfer rate 8,000 MT/s 9,600 MT/s
Clock speed 4,000 MHz 4,800 MHz


Xeon E5-2670  vs
E5-2667 v3 
Architecture x86-64 x86-64
Threads 16 16
L3 cache 20 MB 20 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 2
Operating temperature Unknown - 80°C Unknown - 77.8°C


Overclocked clock speed 3.13 GHz 3.44 GHz
Overclocked clock speed (Water) 3.08 GHz 3.2 GHz
Overclocked clock speed (Air) 3.13 GHz 3.44 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

memory controller

Memory controller Built-in Built-in
Memory type
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 51,200 MB/s 6,400 MB/s
Maximum memory size 393,216 MB 786,432 MB
Intel Xeon E5-2670
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Intel Xeon E5-2667 v3
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