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Differences What are the advantages of each

Front view of Intel Xeon E5-4650 v3

Reasons to consider the
Intel Xeon E5-4650 v3

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Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
More cores 12 vs 6 Twice as many cores; run more applications at once
More threads 24 vs 12 Twice as many threads
Higher Maximum operating temperature 77.6 °C vs 72.6 °C More than 5% 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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Higher turbo clock speed 3.2 GHz vs 2.8 GHz Around 15% higher turbo clock speed
Higher clock speed 2.4 GHz vs 2.1 GHz Around 15% higher clock speed
Lower typical power consumption 69.06W vs 85.31W Around 20% lower typical power consumption
Lower annual commercial energy cost 74.46 $/year vs 91.98 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 20.48 $/year vs 25.29 $/year Around 20% lower annual home energy cost

Features Key features of the Xeon E5-4650 v3  vs E5-2620 v3 

clock speed

turbo clock speed

Specifications Full list of technical specs


Xeon E5-4650 v3  vs
E5-2620 v3 
Clock speed 2.1 GHz 2.4 GHz
Turbo clock speed 2.8 GHz 3.2 GHz
Cores Duodeca 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

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


Xeon E5-4650 v3  vs
E5-2620 v3 
Architecture x86-64 x86-64
Threads 24 12
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Operating temperature Unknown - 77.6°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 105W 85W
Annual home energy cost 25.29 $/year 20.48 $/year
Annual commercial energy cost 91.98 $/year 74.46 $/year
Typical power consumption 85.31W 69.06W


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 E5-4650 v3
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Intel Xeon E5-2620 v3
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