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Differences What are the advantages of each

Front view of Intel Xeon E5-2699 v3

Reasons to consider the
Intel Xeon E5-2699 v3

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Significantly higher turbo clock speed 3.6 GHz vs 2.6 GHz Around 40% higher turbo clock speed
More cores 18 vs 12 6 more cores; run more applications at once
More threads 36 vs 24 12 more threads
Higher clock speed 2.3 GHz vs 2.1 GHz Around 10% higher clock speed
Better overclocked clock speed (Air) 2.84 GHz vs 2.1 GHz More than 35% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 3.17 GHz vs 2.1 GHz More than 50% better overclocked clock speed (Water)
Front view of Intel E5-4640V4

Reasons to consider the
Intel E5-4640V4

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Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 85.31W vs 117.81W Around 30% lower typical power consumption
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Newer Apr, 2016 vs Jul, 2014 Release date over 1 years later
Much lower annual home energy cost 25.29 $/year vs 34.93 $/year Around 30% lower annual home energy cost
Much lower annual commercial energy cost 91.98 $/year vs 127.02 $/year Around 30% lower annual commercial energy cost

Features Key features of the Xeon E5-2699 v3  vs E5-4640V4 

clock speed

Xeon E5-2699 v3
2.3 GHz
E5-4640V4
2.1 GHz

turbo clock speed

Xeon E5-2699 v3
3.6 GHz
E5-4640V4
2.6 GHz

overclocked clock speed (air)

Xeon E5-2699 v3
2.84 GHz
E5-4640V4
2.1 GHz

overclocked clock speed (water)

Xeon E5-2699 v3
3.17 GHz
E5-4640V4
2.1 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5-2699 v3  vs
E5-4640V4 
Clock speed 2.3 GHz 2.1 GHz
Turbo clock speed 3.6 GHz 2.6 GHz
Cores Processing Cores 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

power consumption

TDP 145W 105W
Annual home energy cost 34.93 $/year 25.29 $/year
Annual commercial energy cost 127.02 $/year 91.98 $/year
Typical power consumption 117.81W 85.31W

bus

Architecture QPI FSB
Number of links 2 2
Transfer rate 9,600 MT/s 8,000 MT/s

details

Xeon E5-2699 v3  vs
E5-4640V4 
Architecture x86-64 x86-64
Threads 36 24
Manufacture process 22 nm 14 nm
Max CPUs 2 4

overclocking

Overclocked clock speed 2.84 GHz 2.1 GHz
Overclocked clock speed (Water) 3.17 GHz 2.1 GHz
Overclocked clock speed (Air) 2.84 GHz 2.1 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 E5-2699 v3
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Intel E5-4640V4
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