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Differences What are the advantages of each

Front view of Intel Xeon E5-4655 v3

Reasons to consider the
Intel Xeon E5-4655 v3

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Higher clock speed 2.9 GHz vs 2.5 GHz More than 15% higher clock speed
Front view of Intel E5-4655V4

Reasons to consider the
Intel E5-4655V4

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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
More cores 8 vs 6 2 more cores; run more applications at once
More threads 16 vs 12 4 more threads
Newer Apr, 2016 vs Apr, 2015 Release date a year later

Features Key features of the Xeon E5-4655 v3  vs E5-4655V4 

clock speed

Xeon E5-4655 v3
2.9 GHz
E5-4655V4
2.5 GHz

turbo clock speed

Xeon E5-4655 v3
3.2 GHz
E5-4655V4
3.2 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5-4655 v3  vs
E5-4655V4 
Clock speed 2.9 GHz 2.5 GHz
Turbo clock speed 3.2 GHz 3.2 GHz
Cores Hexa core Octa 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 E5-4655 v3  vs
E5-4655V4 
Architecture x86-64 x86-64
Threads 12 16
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 135W 135W
Annual home energy cost 32.52 $/year 32.52 $/year
Annual commercial energy cost 118.26 $/year 118.26 $/year
Typical power consumption 109.69W 109.69W

bus

Architecture QPI FSB
Number of links 2 2
Transfer rate 9,600 MT/s 9,600 MT/s
Intel Xeon E5-4655 v3
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Intel E5-4655V4
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