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Differences What are the advantages of each

Front view of Intel Xeon E3-1235L v5

Reasons to consider the
Intel Xeon E3-1235L v5

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Much higher turbo clock speed 3 GHz vs 1.5 GHz 2x higher turbo clock speed
Significantly higher clock speed 2 GHz vs 1.1 GHz More than 80% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 8 MB vs 4 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly better PassMark (Single core) score 1,584 vs 829 More than 90% better PassMark (Single core) score
Significantly better performance per dollar 0.87 pt/$ vs 0.46 pt/$ Around 90% better performance per dollar
Better PassMark score 6,352 vs 2,110 More than 3x better PassMark score
Significantly better overclocked clock speed (Air) 3 GHz vs 1.8 GHz More than 65% better overclocked clock speed (Air)
More cores 4 vs 2 Twice as many cores; run more applications at once
Better performance per watt 8.74 pt/W vs 6.89 pt/W More than 25% better performance per watt
Newer Oct, 2015 vs Jul, 2013 Release date over 2 years later
Significantly better overclocked clock speed (Water) 3 GHz vs 1.8 GHz More than 65% better overclocked clock speed (Water)
Front view of Intel Xeon E3-1220L v3

Reasons to consider the
Intel Xeon E3-1220L v3

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Lower typical power consumption 10.56W vs 20.31W Around 50% lower typical power consumption
Lower annual home energy cost 3.13 $/year vs 6.02 $/year Around 50% lower annual home energy cost
Lower annual commercial energy cost 11.39 $/year vs 21.9 $/year Around 50% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E3-1235L v5 vs E3-1220L v3

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1235L v5  vs
E3-1220L v3 
Clock speed 2 GHz 1.1 GHz
Turbo clock speed 3 GHz 1.5 GHz
Cores Quad core Dual 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 13W
Annual home energy cost 6.02 $/year 3.13 $/year
Annual commercial energy cost 21.9 $/year 11.39 $/year
Performance per watt 8.74 pt/W 6.89 pt/W
Typical power consumption 20.31W 10.56W

bus

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

details

Xeon E3-1235L v5  vs
E3-1220L v3 
Architecture x86-64 x86-64
Threads 4 4
L3 cache 8 MB 4 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 GHz 1.8 GHz
Overclocked clock speed (Water) 3 GHz 1.8 GHz
Overclocked clock speed (Air) 3 GHz 1.8 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics P530 N/A
Number of displays supported 3 N/A
GPU clock speed 400 MHz 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 E3-1235L v5
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Intel Xeon E3-1220L v3
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