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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 0.8 pt/$ Around 5.2x better performance per dollar
Higher clock speed 2.4 GHz vs 1.7 GHz More than 40% higher clock speed
Much better performance per watt 12.6 pt/W vs 1.99 pt/W More than 6.2x better performance per watt
Significantly better PassMark (Single core) score 1,683 vs 974 Around 75% better PassMark (Single core) score
Better PassMark score 9,977 vs 5,621 More than 75% better PassMark score
More threads 12 vs 6 Twice as many threads
Better overclocked clock speed (Air) 2.66 GHz vs 2.3 GHz More than 15% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.87 GHz vs 1.7 GHz Around 70% better overclocked clock speed (Water)
Front view of Intel E5-2603V4

Reasons to consider the
Intel E5-2603V4

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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
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Newer Jan, 2016 vs Jul, 2014 Release date over 1 years later

Benchmarks Real world tests of Xeon E5-2620 v3 vs E5-2603V4

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Xeon E5-2620 v3  vs
Clock speed 2.4 GHz 1.7 GHz
Cores Hexa core Hexa core


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
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 1.99 pt/W
Typical power consumption 69.06W 69.06W


Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 51,200 MB/s
Transfer rate 8,000 MT/s 6,400 MT/s
Clock speed 4,000 MHz 3,200 MHz


Xeon E5-2620 v3  vs
Architecture x86-64 x86-64
Threads 12 6
L3 cache 15 MB 15 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


Overclocked clock speed 2.66 GHz 2.3 GHz
Overclocked clock speed (Water) 2.87 GHz 1.7 GHz
Overclocked clock speed (Air) 2.66 GHz 2.3 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 E5-2603V4
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