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Differences What are the advantages of each

Front view of Intel Xeon E3-1280 v3

Reasons to consider the
Intel Xeon E3-1280 v3

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Slightly higher turbo clock speed 4 GHz vs 3.9 GHz Around 5% higher turbo clock speed
Slightly higher clock speed 3.6 GHz vs 3.5 GHz Around 5% higher clock speed
Slightly better overclocked clock speed (Water) 3.6 GHz vs 3.5 GHz Around 5% better overclocked clock speed (Water)
Front view of Intel Xeon E3-1270 v3

Reasons to consider the
Intel Xeon E3-1270 v3

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Better overclocked clock speed (Air) 3.89 GHz vs 3.6 GHz Around 10% better overclocked clock speed (Air)
Slightly lower typical power consumption 65W vs 66.63W Almost the same
Slightly lower annual commercial energy cost 70.08 $/year vs 71.83 $/year Almost the same
Slightly lower annual home energy cost 19.27 $/year vs 19.75 $/year Almost the same

Features Key features of the Xeon E3-1280 v3  vs E3-1270 v3 

clock speed

turbo clock speed

L3 cache

overclocked clock speed (air)

Xeon E3-1280 v3
3.6 GHz
Xeon E3-1270 v3
3.89 GHz

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E3-1280 v3  vs
E3-1270 v3 
Clock speed 3.6 GHz 3.5 GHz
Turbo clock speed 4 GHz 3.9 GHz
Cores Quad core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 82W 80W
Annual home energy cost 19.75 $/year 19.27 $/year
Annual commercial energy cost 71.83 $/year 70.08 $/year
Typical power consumption 66.63W 65W

bus

Architecture DMI DMI
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1280 v3  vs
E3-1270 v3 
Architecture x86-64 x86-64
Threads 8 8
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.6 GHz 3.89 GHz
Overclocked clock speed (Water) 3.6 GHz 3.5 GHz
Overclocked clock speed (Air) 3.6 GHz 3.89 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
Memory type
DDR3-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Xeon E3-1280 v3
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Intel Xeon E3-1270 v3
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