CPUBoss Review Our evaluation of E5-4655 v3 vs E5-2620 v3 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

5.4

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-2620 v3 

CPUBoss recommends the Intel Xeon E5-2620 v3  based on its power consumption and value.

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VS

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 2.4 GHz More than 20% higher clock speed
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Much better geekbench 3 Multi-Core score 19,858 vs 14,662 More than 35% better geekbench 3 Multi-Core score
Better geekbench 3 single core score 3,379 vs 2,702 More than 25% better geekbench 3 single core score
Higher Maximum operating temperature 84.4 °C vs 72.6 °C More than 15% higher Maximum operating temperature
Newer Apr, 2015 vs Jul, 2014 Release date 9 months later
Front view of Intel Xeon E5-2620 v3

Reasons to consider the
Intel Xeon E5-2620 v3

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Much better performance per dollar 4.08 pt/$ vs 0.06 pt/$ Around 67.2x better performance per dollar
Much lower typical power consumption 69.06W vs 109.69W More than 35% lower typical power consumption
Much better performance per watt 12.6 pt/W vs 2.08 pt/W More than 6x better performance per watt
Much lower annual home energy cost 20.48 $/year vs 32.52 $/year More than 35% lower annual home energy cost
Much lower annual commercial energy cost 74.46 $/year vs 118.26 $/year More than 35% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5-4655 v3 vs E5-2620 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 E5-2620 v3
2,750,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-4655 v3  vs
E5-2620 v3 
Clock speed 2.9 GHz 2.4 GHz
Turbo clock speed 3.2 GHz 3.2 GHz
Cores Hexa core Hexa 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
E5-2620 v3 
Architecture x86-64 x86-64
Threads 12 12
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Operating temperature Unknown - 84.4°C Unknown - 72.6°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 85W
Annual home energy cost 32.52 $/year 20.48 $/year
Annual commercial energy cost 118.26 $/year 74.46 $/year
Performance per watt 2.08 pt/W 12.6 pt/W
Typical power consumption 109.69W 69.06W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 76,800 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 E5-4655 v3
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Intel Xeon E5-2620 v3
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