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Differences What are the advantages of each

Front view of Intel Xeon E3-1240L v5

Reasons to consider the
Intel Xeon E3-1240L v5

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Much lower typical power consumption 20.31W vs 65W 3.2x lower typical power consumption
Much lower annual home energy cost 6.02 $/year vs 19.27 $/year 3.2x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 70.08 $/year 3.2x lower annual commercial energy cost
Front view of Intel E3-1280V5

Reasons to consider the
Intel E3-1280V5

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Much higher clock speed 3.7 GHz vs 2.1 GHz More than 75% higher clock speed
Higher turbo clock speed 4 GHz vs 3.2 GHz Around 25% higher turbo clock speed
Significantly better overclocked clock speed (Air) 4 GHz vs 3.1 GHz Around 30% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 4 GHz vs 3.1 GHz Around 30% better overclocked clock speed (Water)

Features Key features of the Xeon E3-1240L v5  vs E3-1280V5 

clock speed

E3-1280V5
3.7 GHz

turbo clock speed

E3-1280V5
4 GHz

L3 cache

overclocked clock speed (air)

E3-1280V5
4 GHz

overclocked clock speed (water)

E3-1280V5
4 GHz

Specifications Full list of technical specs

summary

Xeon E3-1240L v5  vs
E3-1280V5 
Clock speed 2.1 GHz 3.7 GHz
Turbo clock speed 3.2 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 25W 80W
Annual home energy cost 6.02 $/year 19.27 $/year
Annual commercial energy cost 21.9 $/year 70.08 $/year
Typical power consumption 20.31W 65W

bus

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

details

Xeon E3-1240L v5  vs
E3-1280V5 
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 14 nm 14 nm
Max CPUs 1 1
Voltage range 0.55 - 1.52V 0.55 - 1.52V

overclocking

Overclocked clock speed 3.1 GHz 4 GHz
Overclocked clock speed (Water) 3.1 GHz 4 GHz
Overclocked clock speed (Air) 3.1 GHz 4 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
DDR3L-1600
DDR3L-1333
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 Xeon E3-1240L v5
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Intel E3-1280V5
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