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Differences What are the advantages of each

Front view of Intel Xeon E5-4640 v2

Reasons to consider the
Intel Xeon E5-4640 v2

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Lower typical power consumption 77.19W vs 85.31W Around 10% lower typical power consumption
Lower annual home energy cost 22.89 $/year vs 25.29 $/year Around 10% lower annual home energy cost
Lower annual commercial energy cost 83.22 $/year vs 91.98 $/year Around 10% lower annual commercial energy cost
Front view of Intel E5-4620V4

Reasons to consider the
Intel E5-4620V4

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Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Newer Apr, 2016 vs Jan, 2014 Release date over 2 years later

Features Key features of the Xeon E5-4640 v2  vs E5-4620V4 

clock speed

Xeon E5-4640 v2
2.2 GHz
E5-4620V4
2.1 GHz

turbo clock speed

Xeon E5-4640 v2
2.7 GHz
E5-4620V4
2.6 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5-4640 v2  vs
E5-4620V4 
Clock speed 2.2 GHz 2.1 GHz
Turbo clock speed 2.7 GHz 2.6 GHz
Cores Deca core Deca core

features

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

memory controller

Memory controller Built-in Built-in
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 786,432 MB 1,572,864 MB

details

Xeon E5-4640 v2  vs
E5-4620V4 
Architecture x86-64 x86-64
Threads 20 20
Manufacture process 22 nm 14 nm
Max CPUs 4 4

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

power consumption

TDP 95W 105W
Annual home energy cost 22.89 $/year 25.29 $/year
Annual commercial energy cost 83.22 $/year 91.98 $/year
Typical power consumption 77.19W 85.31W

bus

Architecture QPI FSB
Number of links 2 2
Transfer rate 8,000 MT/s 8,000 MT/s
Intel Xeon E5-4640 v2
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Intel E5-4620V4
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