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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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More cores 18 vs 10 8 more cores; run more applications at once
More threads 36 vs 20 16 more threads
Much better performance per watt 10.09 pt/W vs 3.64 pt/W More than 2.8x better performance per watt
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports more RAM 786,432 MB vs 131,072 MB Supports 6x more RAM
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better PassMark score 22,645 vs 20,013 Around 15% better PassMark score
Front view of Intel 6950X

Reasons to consider the
Intel 6950X

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Higher clock speed 3 GHz vs 2.3 GHz More than 30% higher clock speed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.22 GHz vs 2.84 GHz Around 50% better overclocked clock speed (Air)
Better PassMark (Single core) score 2,143 vs 1,869 Around 15% better PassMark (Single core) score
Newer Apr, 2016 vs Jul, 2014 Release date over 1 years later
Slightly lower typical power consumption 113.75W vs 117.81W Around 5% lower typical power consumption
Significantly better overclocked clock speed (Water) 4.3 GHz vs 3.17 GHz More than 35% better overclocked clock speed (Water)
Slightly lower annual home energy cost 33.73 $/year vs 34.93 $/year Around 5% lower annual home energy cost
Slightly lower annual commercial energy cost 122.64 $/year vs 127.02 $/year Around 5% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5-2699 v3 vs 6950X

GeekBench 3 (Multi-core) Data courtesy Primate Labs

6950X
39,590

GeekBench 3 (Single core) Data courtesy Primate Labs

6950X
4,218

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2699 v3
2,980,000 MB/s
6950X
5,040 MB/s

PassMark Data courtesy Passmark

6950X
20,013

PassMark (Single Core)

6950X
2,143

Specifications Full list of technical specs

summary

Xeon E5-2699 v3  vs
6950X 
Clock speed 2.3 GHz 3 GHz
Turbo clock speed 3.6 GHz 3.5 GHz
Cores Processing Cores Deca core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 145W 140W
Annual home energy cost 34.93 $/year 33.73 $/year
Annual commercial energy cost 127.02 $/year 122.64 $/year
Performance per watt 10.09 pt/W 3.64 pt/W
Typical power consumption 117.81W 113.75W

bus

Architecture QPI FSB
Number of links 2 1

details

Xeon E5-2699 v3  vs
6950X 
Architecture x86-64 x86-64
Threads 36 20
Manufacture process 22 nm 14 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 2.84 GHz 4.22 GHz
Overclocked clock speed (Water) 3.17 GHz 4.3 GHz
Overclocked clock speed (Air) 2.84 GHz 4.22 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 No
Maximum memory size 786,432 MB 131,072 MB
Intel Xeon E5-2699 v3
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Intel 6950X
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