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Differences What are the advantages of each

Front view of Intel Xeon E5-2689

Reasons to consider the
Intel Xeon E5-2689

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Much higher clock speed 2.6 GHz vs 2.3 GHz Around 15% higher clock speed
Front view of Intel Xeon E5-2670 v3

Reasons to consider the
Intel Xeon E5-2670 v3

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Much more l3 cache 30 MB vs 20 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 24 vs 16 8 more threads
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jul, 2014 vs Mar, 2012 Release date over 2 years later

Benchmarks Real world tests of Xeon E5-2689 vs E5-2670 v3

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2689
2,360,000 MB/s
Xeon E5-2670 v3
1,677,550 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2689  vs
E5-2670 v3 
Clock speed 2.6 GHz 2.3 GHz
Cores Octa core Duodeca core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

details

Xeon E5-2689  vs
E5-2670 v3 
Threads 16 24
L3 cache 20 MB 30 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 2

power consumption

TDP 115W 120W
Annual home energy cost 27.7 $/year 28.91 $/year
Annual commercial energy cost 100.74 $/year 105.12 $/year
Performance per watt 10.97 pt/W 8.63 pt/W
Typical power consumption 93.44W 97.5W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 76,800 MB/s
Transfer rate 8,000 MT/s 9,600 MT/s
Clock speed 4,000 MHz 4,800 MHz
Intel Xeon E5-2689
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Intel Xeon E5-2670 v3
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