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Differences What are the advantages of each

Front view of Intel Xeon E3-1270 v2

Reasons to consider the
Intel Xeon E3-1270 v2

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Much higher turbo clock speed 3.9 GHz vs 0 GHz Compared to all cpus, 3.9 GHz turbo clock speed is just OK
Much higher clock speed 3.5 GHz vs 2.3 GHz More than 50% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 56.06W vs 113.75W 2x lower typical power consumption
Newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
Much lower annual commercial energy cost 60.44 $/year vs 122.64 $/year 2x lower annual commercial energy cost
Much lower annual home energy cost 16.62 $/year vs 33.73 $/year 2x lower annual home energy cost
Newer May, 2012 vs Mar, 2010 Release date over 2 years later
Front view of AMD Opteron 6176 SE

Reasons to consider the
AMD Opteron 6176 SE

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 12 vs 4 Three times as many cores; run more applications at once
More threads 12 vs 8 4 more threads
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration

Features Key features of the Xeon E3-1270 v2  vs Opteron 6176 SE 

clock speed

turbo clock speed

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E3-1270 v2  vs
Opteron 6176 SE 
Clock speed 3.5 GHz 2.3 GHz
Turbo clock speed 3.9 GHz 0 GHz
Cores Quad core Duodeca core
Socket type
LGA 1155
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
3DNow!
Supplemental SSE3
AES

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3

details

Xeon E3-1270 v2  vs
Opteron 6176 SE 
Threads 8 12
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 12 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 4
Clock multiplier 35 11

integrated graphics

GPU GPU None
Number of displays supported 0 N/A

power consumption

TDP 69W 140W
Annual home energy cost 16.62 $/year 33.73 $/year
Annual commercial energy cost 60.44 $/year 122.64 $/year
Typical power consumption 56.06W 113.75W

bus

Architecture DMI HyperTransport 3.0
Intel Xeon E3-1270 v2
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AMD Opteron 6176 SE
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