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Differences What are the advantages of each

Front view of Intel Xeon E3-1260L v5

Reasons to consider the
Intel Xeon E3-1260L v5

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Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly lower typical power consumption 36.56W vs 65W Around 45% lower typical power consumption
Newer Oct, 2015 vs Apr, 2013 Release date over 2 years later
Significantly lower annual commercial energy cost 39.42 $/year vs 70.08 $/year Around 45% lower annual commercial energy cost
Significantly lower annual home energy cost 10.84 $/year vs 19.27 $/year Around 45% lower annual home energy cost
Slightly better overclocked clock speed (Air) 3.9 GHz vs 3.71 GHz More than 5% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 3.9 GHz vs 3.4 GHz Around 15% better overclocked clock speed (Water)
Front view of Intel Xeon E3-1240 v3

Reasons to consider the
Intel Xeon E3-1240 v3

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Much better performance per dollar 6.2 pt/$ vs 1.11 pt/$ More than 5.5x better performance per dollar
Higher clock speed 3.4 GHz vs 2.9 GHz More than 15% higher clock speed
Much better performance per watt 21.46 pt/W vs 7.23 pt/W Around 3x better performance per watt

Benchmarks Real world tests of Xeon E3-1260L v5 vs E3-1240 v3

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1260L v5  vs
E3-1240 v3 
Clock speed 2.9 GHz 3.4 GHz
Turbo clock speed 3.9 GHz 3.8 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
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 80W
Annual home energy cost 10.84 $/year 19.27 $/year
Annual commercial energy cost 39.42 $/year 70.08 $/year
Performance per watt 7.23 pt/W 21.46 pt/W
Typical power consumption 36.56W 65W

bus

Architecture FSB DMI
Number of links 1 0
Transfer rate 8,000 MT/s 5,000 MT/s

details

Xeon E3-1260L v5  vs
E3-1240 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 14 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.9 GHz 3.71 GHz
Overclocked clock speed (Water) 3.9 GHz 3.4 GHz
Overclocked clock speed (Air) 3.9 GHz 3.71 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
DDR3L-1333
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 32,768 MB
Intel Xeon E3-1260L v5
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Intel Xeon E3-1240 v3
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