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Differences What are the advantages of each

Front view of Intel E3-1585V5

Reasons to consider the
Intel E3-1585V5

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Lower typical power consumption 52.81W vs 65W Around 20% lower typical power consumption
Lower annual commercial energy cost 56.94 $/year vs 70.08 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 15.66 $/year vs 19.27 $/year Around 20% lower annual home energy cost
Newer Apr, 2016 vs Oct, 2015 Release date 6 months later
Front view of Intel E3-1280V5

Reasons to consider the
Intel E3-1280V5

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Higher clock speed 3.7 GHz vs 3.5 GHz More than 5% higher clock speed
Better PassMark (Single core) score 2,243 vs 1,737 Around 30% better PassMark (Single core) score
Better overclocked clock speed (Air) 4 GHz vs 3.5 GHz Around 15% better overclocked clock speed (Air)
Better PassMark score 10,644 vs 9,403 Around 15% better PassMark score
Better overclocked clock speed (Water) 4 GHz vs 3.5 GHz Around 15% better overclocked clock speed (Water)

Benchmarks Real world tests of E3-1585V5 vs E3-1280V5

PassMark Data courtesy Passmark

E3-1585V5
9,403
E3-1280V5
10,644

PassMark (Single Core)

E3-1585V5
1,737
E3-1280V5
2,243

Specifications Full list of technical specs

summary

E3-1585V5  vs
E3-1280V5 
Clock speed 3.5 GHz 3.7 GHz
Turbo clock speed 3.9 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 65W 80W
Annual home energy cost 15.66 $/year 19.27 $/year
Annual commercial energy cost 56.94 $/year 70.08 $/year
Performance per watt 4.45 pt/W 4.29 pt/W
Typical power consumption 52.81W 65W

bus

Architecture FSB FSB
Number of links 0 1
Transfer rate 8,000 MT/s 8,000 MT/s

details

E3-1585V5  vs
E3-1280V5 
Architecture x86-64 x86-64
Threads 8 8
Manufacture process 14 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.5 GHz 4 GHz
Overclocked clock speed (Water) 3.5 GHz 4 GHz
Overclocked clock speed (Air) 3.5 GHz 4 GHz

integrated graphics

GPU GPU None
Label Intel® Iris™ Pro Graphics P580 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,150 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 12,800 MB/s 25,600 MB/s
Maximum memory size 65,536 MB 65,536 MB
Intel E3-1585V5
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Intel E3-1280V5
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