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Differences What are the advantages of each

Front view of Intel E5-2667V4

Reasons to consider the
Intel E5-2667V4

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Significantly higher clock speed 3.2 GHz vs 2.1 GHz More than 50% higher clock speed
Higher turbo clock speed 3.6 GHz vs 3 GHz More than 20% higher turbo clock speed
More l3 cache 25 MB vs 20 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly better PassMark score 16,389 vs 11,389 Around 45% better PassMark score
Significantly better overclocked clock speed (Air) 3.5 GHz vs 2.37 GHz Around 50% better overclocked clock speed (Air)
Significantly more l3 cache per core 3.13 MB/core vs 2.5 MB/core 25% more l3 cache per core
Better PassMark (Single core) score 1,882 vs 1,527 Around 25% better PassMark (Single core) score
Better performance per watt 3.45 pt/W vs 2.54 pt/W More than 35% better performance per watt
Higher Maximum operating temperature 78 °C vs 74 °C More than 5% higher Maximum operating temperature
Better overclocked clock speed (Water) 3.2 GHz vs 2.58 GHz Around 25% better overclocked clock speed (Water)
Front view of Intel E5-2620V4

Reasons to consider the
Intel E5-2620V4

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Much lower typical power consumption 69.06W vs 109.69W More than 35% lower typical power consumption
Significantly better performance per dollar 0.52 pt/$ vs 0.23 pt/$ More than 2.2x better performance per dollar
Much lower annual home energy cost 20.48 $/year vs 32.52 $/year More than 35% lower annual home energy cost
Much lower annual commercial energy cost 74.46 $/year vs 118.26 $/year More than 35% lower annual commercial energy cost

Benchmarks Real world tests of E5-2667V4 vs E5-2620V4

GeekBench 3 (Multi-core) Data courtesy Primate Labs

E5-2667V4
40,990.5
E5-2620V4
8,618

GeekBench 3 (Single core) Data courtesy Primate Labs

E5-2667V4
3,054.5
E5-2620V4
2,491

GeekBench 3 (AES single core) Data courtesy Primate Labs

E5-2667V4
2,580 MB/s
E5-2620V4
3,210 MB/s

PassMark Data courtesy Passmark

E5-2667V4
16,389
E5-2620V4
11,389

PassMark (Single Core)

E5-2667V4
1,882
E5-2620V4
1,527

Specifications Full list of technical specs

summary

E5-2667V4  vs
E5-2620V4 
Clock speed 3.2 GHz 2.1 GHz
Turbo clock speed 3.6 GHz 3 GHz
Cores Octa core Octa core

features

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

power consumption

TDP 135W 85W
Annual home energy cost 32.52 $/year 20.48 $/year
Annual commercial energy cost 118.26 $/year 74.46 $/year
Performance per watt 3.45 pt/W 2.54 pt/W
Typical power consumption 109.69W 69.06W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 76,800 MB/s 64,000 MB/s
Transfer rate 9,600 MT/s 8,000 MT/s
Clock speed 4,800 MHz 4,000 MHz

details

E5-2667V4  vs
E5-2620V4 
Architecture x86-64 x86-64
Threads 16 16
L3 cache 25 MB 20 MB
L3 cache per core 3.13 MB/core 2.5 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 78°C Unknown - 74°C

overclocking

Overclocked clock speed 3.5 GHz 2.37 GHz
Overclocked clock speed (Water) 3.2 GHz 2.58 GHz
Overclocked clock speed (Air) 3.5 GHz 2.37 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
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 1,572,864 MB 1,572,864 MB
Intel E5-2667V4
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Intel E5-2620V4
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