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Differences What are the advantages of each

Front view of Intel Xeon E3-1285 v4

Reasons to consider the
Intel Xeon E3-1285 v4

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Front view of Intel E3-1240V5

Reasons to consider the
Intel E3-1240V5

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Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Newer Oct, 2015 vs Apr, 2015 Release date 6 months later

Features Key features of the Xeon E3-1285 v4  vs E3-1240V5 

clock speed

Xeon E3-1285 v4
3.5 GHz
E3-1240V5
3.5 GHz

turbo clock speed

Xeon E3-1285 v4
3.8 GHz
E3-1240V5
3.9 GHz

Specifications Full list of technical specs

summary

Xeon E3-1285 v4  vs
E3-1240V5 
Clock speed 3.5 GHz 3.5 GHz
Turbo clock speed 3.8 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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

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 32,768 MB 65,536 MB

details

Xeon E3-1285 v4  vs
E3-1240V5 
Architecture x86-64 x86-64
Threads 8 8
Manufacture process 14 nm 14 nm
Max CPUs 1 1

integrated graphics

GPU GPU None
Label Intel® Iris™ Pro Graphics P6300 N/A
Number of displays supported 3 N/A
GPU clock speed 300 MHz N/A
Turbo clock speed 1,150 MHz N/A

power consumption

TDP 95W 80W
Annual home energy cost 22.89 $/year 19.27 $/year
Annual commercial energy cost 83.22 $/year 70.08 $/year
Typical power consumption 77.19W 65W

bus

Architecture DMI FSB
Number of links 0 1
Transfer rate 5,000 MT/s 8,000 MT/s
Intel Xeon E3-1285 v4
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Intel E3-1240V5
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