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Differences What are the advantages of each

Front view of Intel Xeon E7-4820 v3

Reasons to consider the
Intel Xeon E7-4820 v3

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More threads 20 vs 16 4 more threads
Newer Apr, 2015 vs Feb, 2014 Release date over 1 years later
Front view of Intel Xeon E7-4820 v2

Reasons to consider the
Intel Xeon E7-4820 v2

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Higher clock speed 2 GHz vs 1.9 GHz More than 5% higher clock speed
Lower typical power consumption 85.31W vs 93.44W Around 10% lower typical power consumption
Lower annual commercial energy cost 91.98 $/year vs 100.74 $/year Around 10% lower annual commercial energy cost
Lower annual home energy cost 25.29 $/year vs 27.7 $/year Around 10% lower annual home energy cost

Features Key features of the Xeon E7-4820 v3  vs v2 

clock speed

Specifications Full list of technical specs

summary

Xeon E7-4820 v3  vs
v2 
Clock speed 1.9 GHz 2 GHz
Cores Deca 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
Memory type
DDR3-1333
DDR3-1066
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 42,666.64 MB/s 42,666.64 MB/s
Maximum memory size 1,572,864 MB 1,572,864 MB

details

Xeon E7-4820 v3  vs
v2 
Architecture x86-64 x86-64
Threads 20 16
Manufacture process 22 nm 22 nm
Max CPUs 4 4
Operating temperature Unknown - 70°C Unknown - 68°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 115W 105W
Annual home energy cost 27.7 $/year 25.29 $/year
Annual commercial energy cost 100.74 $/year 91.98 $/year
Typical power consumption 93.44W 85.31W

bus

Architecture QPI QPI
Number of links 3 3
Data rate 76,800 MB/s 86,400 MB/s
Transfer rate 6,400 MT/s 7,200 MT/s
Clock speed 3,200 MHz 3,600 MHz
Intel Xeon E7-4820 v3
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Intel Xeon E7-4820 v2
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