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Intel Xeon E3-1275 v5

Front view of Intel Xeon E3-1275 v5
Front view of Intel Core i7 6700K

Intel Core i7 6700K

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Differences What are the advantages of each

Front view of Intel Xeon E3-1275 v5

Reasons to consider the
Intel Xeon E3-1275 v5

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Lower typical power consumption 65W vs 73.94W More than 10% lower typical power consumption
Higher GPU clock speed 400 MHz vs 350 MHz Around 15% higher GPU clock speed
Lower annual home energy cost 19.27 $/year vs 21.92 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 70.08 $/year vs 79.72 $/year More than 10% lower annual commercial energy cost
Newer Oct, 2015 vs Jul, 2015 Release date 3 months later
Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Higher clock speed 4 GHz vs 3.6 GHz More than 10% higher clock speed
Slightly higher turbo clock speed 4.2 GHz vs 4 GHz More than 5% higher turbo clock speed
Better overclocked clock speed (Air) 4.61 GHz vs 4 GHz More than 15% better overclocked clock speed (Air)
Better PassMark (Single core) score 2,349 vs 2,164 Around 10% better PassMark (Single core) score
Better performance per dollar 0.91 pt/$ vs 0.8 pt/$ Around 15% better performance per dollar
Better overclocked clock speed (Water) 4.77 GHz vs 4 GHz Around 20% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E3-1275 v5 vs Core i7 6700K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E3-1275 v5
14,383
Core i7 6700K
17,583

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E3-1275 v5
4,333.5
Core i7 6700K
4,510

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E3-1275 v5
5,405 MB/s
Core i7 6700K
6,010 MB/s

PassMark Data courtesy Passmark

Xeon E3-1275 v5
10,346
Core i7 6700K
11,109

PassMark (Single Core)

Xeon E3-1275 v5
2,164
Core i7 6700K
2,349

Specifications Full list of technical specs

summary

 Xeon E3-1275 v5  vs
Core i7 6700K 
Clock speed 3.6 GHz 4 GHz
Turbo clock speed 4 GHz 4.2 GHz
Cores Quad core Quad core

features
Has a NX bit Yes Yes
Supports trusted computing Yes No
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 80W 91W
Annual home energy cost 19.27 $/year 21.92 $/year
Annual commercial energy cost 70.08 $/year 79.72 $/year
Performance per watt 3.54 pt/W 3.49 pt/W
Typical power consumption 65W 73.94W

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

details

 Xeon E3-1275 v5  vs
Core i7 6700K 
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

overclocking
Overclocked clock speed 4 GHz 4.61 GHz
Overclocked clock speed (Water) 4 GHz 4.77 GHz
Overclocked clock speed (Air) 4 GHz 4.61 GHz

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics P530 Intel® HD Graphics 530
Number of displays supported 3 3
GPU clock speed 400 MHz 350 MHz
Turbo clock speed 1,150 MHz 1,150 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3L-1600
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 65,536 MB 65,536 MB
Intel Xeon E3-1275 v5
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Intel Core i7 6700K
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