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Differences What are the advantages of each

Front view of Intel Xeon E3-1226 v3

Reasons to consider the
Intel Xeon E3-1226 v3

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Much better performance per dollar 7.17 pt/$ vs 0.87 pt/$ Around 8.2x better performance per dollar
Much better performance per watt 19.03 pt/W vs 4.09 pt/W Around 4.8x better performance per watt
Better turbo clock speed 1,200 MHz vs 1,150 MHz Around 5% better turbo clock speed
Front view of Intel Core i7 6700

Reasons to consider the
Intel Core i7 6700

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Much better 3DMark06 CPU score 76 vs 66.5 Around 15% better 3DMark06 CPU score
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher turbo clock speed 4 GHz vs 3.7 GHz Around 10% higher turbo clock speed
Lower typical power consumption 52.81W vs 68.25W Around 25% lower typical power consumption
More threads 8 vs 4 Twice as many threads
Better PassMark score 10,038 vs 7,554 Around 35% better PassMark score
Better overclocked clock speed (Air) 3.98 GHz vs 3.3 GHz More than 20% better overclocked clock speed (Air)
Newer Jul, 2015 vs Apr, 2014 Release date over 1 years later
Lower annual home energy cost 15.66 $/year vs 20.24 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 73.58 $/year Around 25% lower annual commercial energy cost
Better overclocked clock speed (Water) 4.18 GHz vs 3.93 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E3-1226 v3 vs Core i7 6700

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Xeon E3-1226 v3  vs
Core i7 6700 
Clock speed 3.3 GHz 3.4 GHz
Turbo clock speed 3.7 GHz 4 GHz
Cores Quad core Quad core


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 84W 65W
Annual home energy cost 20.24 $/year 15.66 $/year
Annual commercial energy cost 73.58 $/year 56.94 $/year
Performance per watt 19.03 pt/W 4.09 pt/W
Typical power consumption 68.25W 52.81W


Architecture DMI 2.0 FSB
Number of links 0 1
Transfer rate 5,000 MT/s 8,000 MT/s


Xeon E3-1226 v3  vs
Core i7 6700 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 1 1


Overclocked clock speed 3.3 GHz 3.98 GHz
Overclocked clock speed (Water) 3.93 GHz 4.18 GHz
Overclocked clock speed (Air) 3.3 GHz 3.98 GHz

integrated graphics

Label Intel® HD Graphics P4600 Intel® HD Graphics 530
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,200 MHz 1,150 MHz

memory controller

Memory controller Built-in Built-in
Memory type
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 65,536 MB
Intel Xeon E3-1226 v3
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Intel Core i7 6700
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