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Differences What are the advantages of each

Front view of Intel Xeon E7-4870 v2

Reasons to consider the
Intel Xeon E7-4870 v2

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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
Much more l2 cache 3.5 MB vs 2 MB 75% more l2 cache; more data can be stored in the l2 cache for quick access later
More threads 30 vs 16 14 more threads
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Newer Feb, 2014 vs Mar, 2012 Release date over 1 years later
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
Lower typical power consumption 93.44W vs 105.63W More than 10% lower typical power consumption
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Lower annual commercial energy cost 100.74 $/year vs 113.88 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 27.7 $/year vs 31.32 $/year More than 10% lower annual home energy cost

Features Key features of the Xeon E7-4870 v2  vs E5-2689 

clock speed

Xeon E7-4870 v2
2.3 GHz
Xeon E5-2689
2.6 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4870 v2  vs
E5-2689 
Clock speed 2.3 GHz 2.6 GHz
Cores Pentadeca core Octa core
Socket type
LGA 2011

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
Supports dynamic frequency scaling Yes Yes

details

Xeon E7-4870 v2  vs
E5-2689 
Threads 30 16
L2 cache 3.5 MB 2 MB
L2 cache per core 0.23 MB/core 0.25 MB/core
L3 cache 30 MB 20 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 4 2

power consumption

TDP 130W 115W
Annual home energy cost 31.32 $/year 27.7 $/year
Annual commercial energy cost 113.88 $/year 100.74 $/year
Typical power consumption 105.63W 93.44W

bus

Architecture QPI QPI
Number of links 3 2
Data rate 96,000 MB/s 64,000 MB/s
Transfer rate 8,000 MT/s 8,000 MT/s
Clock speed 4,000 MHz 4,000 MHz
Intel Xeon E7-4870 v2
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Intel Xeon E5-2689
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