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Differences What are the advantages of each

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 0.57 pt/$ Around 7.2x better performance per dollar
More l3 cache 15 MB vs 10 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 12.6 pt/W vs 2.99 pt/W Around 4.2x better performance per watt
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Better PassMark score 9,977 vs 8,061 Around 25% better PassMark score
Front view of Intel E5-2623V4

Reasons to consider the
Intel E5-2623V4

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Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Better geekbench 3 single core score 2,997 vs 2,702 More than 10% better geekbench 3 single core score
Newer Jan, 2016 vs Jul, 2014 Release date over 1 years later
Better overclocked clock speed (Water) 3.31 GHz vs 2.87 GHz More than 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2620 v3 vs E5-2623V4

GeekBench 3 (Multi-core) Data courtesy Primate Labs

E5-2623V4
17,846

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2620 v3
2,750,000 MB/s
E5-2623V4
2,820 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2620 v3  vs
E5-2623V4 
Clock speed 2.4 GHz 2.6 GHz
Turbo clock speed 3.2 GHz 3.2 GHz
Cores Hexa core Quad 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

power consumption

TDP 85W 85W
Annual home energy cost 20.48 $/year 20.48 $/year
Annual commercial energy cost 74.46 $/year 74.46 $/year
Performance per watt 12.6 pt/W 2.99 pt/W
Typical power consumption 69.06W 69.06W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 64,000 MB/s
Transfer rate 8,000 MT/s 8,000 MT/s
Clock speed 4,000 MHz 4,000 MHz

details

Xeon E5-2620 v3  vs
E5-2623V4 
Architecture x86-64 x86-64
Threads 12 8
L3 cache 15 MB 10 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 72.6°C Unknown - 73°C

overclocking

Overclocked clock speed 2.66 GHz 2.6 GHz
Overclocked clock speed (Water) 2.87 GHz 3.31 GHz
Overclocked clock speed (Air) 2.66 GHz 2.6 GHz

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

memory controller

Memory controller Built-in Built-in
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 786,432 MB 1,572,864 MB
Intel Xeon E5-2620 v3
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Intel E5-2623V4
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