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Differences What are the advantages of each

Front view of Intel Xeon E7-8891 v3

Reasons to consider the
Intel Xeon E7-8891 v3

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Supports more CPUs in SMP configuration 8 vs 4 Twice as many CPUs in SMP configuration
Higher turbo clock speed 3.5 GHz vs 3.2 GHz Around 10% higher turbo clock speed
Higher clock speed 2.8 GHz vs 2.6 GHz Around 10% higher clock speed
More threads 20 vs 10 Twice as many threads
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Front view of Intel Xeon E5-4627 v3

Reasons to consider the
Intel Xeon E5-4627 v3

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Significantly lower typical power consumption 109.69W vs 134.06W Around 20% lower typical power consumption
Higher Maximum operating temperature 86.4 °C vs 79 °C Around 10% higher Maximum operating temperature
Significantly lower annual home energy cost 32.52 $/year vs 39.75 $/year Around 20% lower annual home energy cost
Significantly lower annual commercial energy cost 118.26 $/year vs 144.54 $/year Around 20% lower annual commercial energy cost

Features Key features of the Xeon E7-8891 v3  vs E5-4627 v3 

clock speed

turbo clock speed

Specifications Full list of technical specs

summary

Xeon E7-8891 v3  vs
E5-4627 v3 
Clock speed 2.8 GHz 2.6 GHz
Turbo clock speed 3.5 GHz 3.2 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 1,572,864 MB 786,432 MB

details

Xeon E7-8891 v3  vs
E5-4627 v3 
Architecture x86-64 x86-64
Threads 20 10
Manufacture process 22 nm 22 nm
Max CPUs 8 4
Operating temperature Unknown - 79°C Unknown - 86.4°C

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 165W 135W
Annual home energy cost 39.75 $/year 32.52 $/year
Annual commercial energy cost 144.54 $/year 118.26 $/year
Typical power consumption 134.06W 109.69W

bus

Architecture QPI QPI
Number of links 3 2
Data rate 115,200 MB/s 64,000 MB/s
Transfer rate 9,600 MT/s 8,000 MT/s
Clock speed 4,800 MHz 4,000 MHz
Intel Xeon E7-8891 v3
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Intel Xeon E5-4627 v3
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