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Differences What are the advantages of each

Front view of Intel Xeon E3-1270 v5

Reasons to consider the
Intel Xeon E3-1270 v5

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Significantly higher clock speed 3.6 GHz vs 2.4 GHz More than 50% higher clock speed
Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher turbo clock speed 4 GHz vs 3.3 GHz More than 20% higher turbo clock speed
Better PassMark score 10,207 vs 6,534 More than 55% better PassMark score
Better PassMark (Single core) score 2,144 vs 1,642 More than 30% better PassMark (Single core) score
Newer Oct, 2015 vs Apr, 2011 Release date over 4 years later
Better performance per dollar 0.8 pt/$ vs 0.73 pt/$ Around 10% better performance per dollar
Front view of Intel Xeon E3-1260L

Reasons to consider the
Intel Xeon E3-1260L

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly lower typical power consumption 36.56W vs 65W Around 45% lower typical power consumption
Better performance per watt 5.01 pt/W vs 3.49 pt/W Around 45% better performance per watt
Significantly lower annual home energy cost 10.84 $/year vs 19.27 $/year Around 45% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 70.08 $/year Around 45% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E3-1270 v5 vs E3-1260L

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1270 v5  vs
E3-1260L 
Clock speed 3.6 GHz 2.4 GHz
Turbo clock speed 4 GHz 3.3 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
DDR3-1333
DDR3-1066
DDR3L-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 12,800 MB/s 21,333.32 MB/s
Maximum memory size 65,536 MB 32,768 MB

details

Xeon E3-1270 v5  vs
E3-1260L 
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 32 nm
Max CPUs 1 1

integrated graphics

GPU None GPU
Label N/A HD Graphics 2000
Number of displays supported N/A 2
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,250 MHz

power consumption

TDP 80W 45W
Annual home energy cost 19.27 $/year 10.84 $/year
Annual commercial energy cost 70.08 $/year 39.42 $/year
Performance per watt 3.49 pt/W 5.01 pt/W
Typical power consumption 65W 36.56W

bus

Architecture FSB DMI
Number of links 1 1
Transfer rate 8,000 MT/s 5,000 MT/s
Intel Xeon E3-1270 v5
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Intel Xeon E3-1260L
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