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Differences What are the advantages of each

Front view of Intel Xeon E5-2670

Reasons to consider the
Intel Xeon E5-2670

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Much more l3 cache 20 MB vs 16 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 2.5 MB/core vs 1 MB/core 2.5x more l3 cache per core
Lower typical power consumption 93.44W vs 113.75W Around 20% lower typical power consumption
Lower annual commercial energy cost 100.74 $/year vs 122.64 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 27.7 $/year vs 33.73 $/year Around 20% lower annual home energy cost
Front view of AMD Opteron 6286 SE

Reasons to consider the
AMD Opteron 6286 SE

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Much more l2 cache 16 MB vs 2 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 2.8 GHz vs 2.6 GHz Around 10% higher clock speed
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration

Features Key features of the Xeon E5-2670  vs Opteron 6286 SE 

clock speed

Xeon E5-2670
2.6 GHz
Opteron 6286 SE
2.8 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E5-2670  vs
Opteron 6286 SE 
Clock speed 2.6 GHz 2.8 GHz
Cores Octa core 16 core
Socket type
LGA 2011
G34

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES

details

Xeon E5-2670  vs
Opteron 6286 SE 
Threads 16 16
L2 cache 2 MB 16 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 20 MB 16 MB
L3 cache per core 2.5 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 4

power consumption

TDP 115W 140W
Annual home energy cost 27.7 $/year 33.73 $/year
Annual commercial energy cost 100.74 $/year 122.64 $/year
Typical power consumption 93.44W 113.75W

bus

Architecture QPI HyperTransport 3.0
Transfer rate 8,000 MT/s 6,400 MT/s
Clock speed 4,000 MHz 3,200 MHz
Intel Xeon E5-2670
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AMD Opteron 6286 SE
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