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Differences What are the advantages of each

Front view of Intel Xeon E7-4809 v3

Reasons to consider the
Intel Xeon E7-4809 v3

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Lower typical power consumption 93.44W vs 109.69W Around 15% lower typical power consumption
Lower annual home energy cost 27.7 $/year vs 32.52 $/year Around 15% lower annual home energy cost
Lower annual commercial energy cost 100.74 $/year vs 118.26 $/year Around 15% lower annual commercial energy cost
Front view of Intel E5-4655V4

Reasons to consider the
Intel E5-4655V4

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Higher clock speed 2.5 GHz vs 2 GHz 25% higher clock speed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Apr, 2016 vs Apr, 2015 Release date a year later

Features Key features of the Xeon E7-4809 v3  vs E5-4655V4 

clock speed

2.5 GHz


Specifications Full list of technical specs


Xeon E7-4809 v3  vs
Clock speed 2 GHz 2.5 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
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 1,572,864 MB 1,572,864 MB


Xeon E7-4809 v3  vs
Architecture x86-64 x86-64
Threads 16 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 115W 135W
Annual home energy cost 27.7 $/year 32.52 $/year
Annual commercial energy cost 100.74 $/year 118.26 $/year
Typical power consumption 93.44W 109.69W


Architecture QPI FSB
Number of links 3 2
Transfer rate 6,400 MT/s 9,600 MT/s
Intel Xeon E7-4809 v3
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Intel E5-4655V4
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