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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
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Better geekbench 3 single core score 3,379 vs 3,026 More than 10% better geekbench 3 single core score
Newer Apr, 2015 vs Jul, 2014 Release date 9 months later
Front view of Intel Xeon E5-2680 v3

Reasons to consider the
Intel Xeon E5-2680 v3

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Much better geekbench 3 Multi-Core score 52,486 vs 19,858 Around 2.8x better geekbench 3 Multi-Core score
Much better performance per watt 12.03 pt/W vs 2.08 pt/W More than 5.8x better performance per watt
More cores 12 vs 6 Twice as many cores; run more applications at once
More threads 24 vs 12 Twice as many threads
Much better performance per dollar 0.76 pt/$ vs 0.06 pt/$ More than 12.5x better performance per dollar
Lower typical power consumption 97.5W vs 109.69W More than 10% lower typical power consumption
Lower annual home energy cost 28.91 $/year vs 32.52 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 105.12 $/year vs 118.26 $/year More than 10% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5-4655 v3 vs E5-2680 v3

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-4655 v3
3,620 MB/s
Xeon E5-2680 v3
2,640,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-4655 v3  vs
E5-2680 v3 
Clock speed 2.9 GHz 2.5 GHz
Turbo clock speed 3.2 GHz 3.3 GHz
Cores Hexa core Duodeca 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 786,432 MB

details

Xeon E5-4655 v3  vs
E5-2680 v3 
Architecture x86-64 x86-64
Threads 12 24
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Operating temperature Unknown - 84.4°C Unknown - 84.5°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 135W 120W
Annual home energy cost 32.52 $/year 28.91 $/year
Annual commercial energy cost 118.26 $/year 105.12 $/year
Performance per watt 2.08 pt/W 12.03 pt/W
Typical power consumption 109.69W 97.5W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 76,800 MB/s 76,800 MB/s
Transfer rate 9,600 MT/s 9,600 MT/s
Clock speed 4,800 MHz 4,800 MHz
Intel Xeon E5-4655 v3
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Intel Xeon E5-2680 v3
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