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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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CPUBoss is not aware of any important advantages of the E3-1280 v3 vs the E3-1276 v3.

Front view of Intel Xeon E3-1276 v3

Reasons to consider the
Intel Xeon E3-1276 v3

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer Apr, 2014 vs Apr, 2013 Release date a year later

Features Key features of the Xeon E3-1280 v3  vs E3-1276 v3 

clock speed

turbo clock speed

L3 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E3-1280 v3  vs
E3-1276 v3 
Clock speed 3.6 GHz 3.6 GHz
Turbo clock speed 4 GHz 4 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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 82W 84W
Annual home energy cost 19.75 $/year 20.24 $/year
Annual commercial energy cost 71.83 $/year 73.58 $/year
Typical power consumption 66.63W 68.25W

bus

Architecture DMI DMI 2.0
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1280 v3  vs
E3-1276 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 3.6 GHz
Overclocked clock speed (Water) 3.6 GHz 3.6 GHz
Overclocked clock speed (Air) 3.6 GHz 3.6 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics P4600
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,250 MHz

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 E3-1276 v3
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