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Differences What are the advantages of each

Front view of Intel E7-8891V4

Reasons to consider the
Intel E7-8891V4

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Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Higher clock speed 2.8 GHz vs 2.4 GHz More than 15% higher clock speed
Supports more RAM 3,145,728 MB vs 1,572,864 MB Supports 2x more RAM
Better overclocked clock speed (Air) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Water)
Newer Apr, 2016 vs Jan, 2016 Release date 3 months later
Front view of Intel E5-2640V4

Reasons to consider the
Intel E5-2640V4

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Much lower typical power consumption 73.13W vs 134.06W More than 45% lower typical power consumption
Much lower annual home energy cost 21.68 $/year vs 39.75 $/year More than 45% lower annual home energy cost
Much lower annual commercial energy cost 78.84 $/year vs 144.54 $/year More than 45% lower annual commercial energy cost

Features Key features of the E7-8891V4  vs E5-2640V4 

clock speed

E7-8891V4
2.8 GHz
E5-2640V4
2.4 GHz

turbo clock speed

E7-8891V4
3.5 GHz
E5-2640V4
3.4 GHz

overclocked clock speed (air)

E7-8891V4
2.8 GHz
E5-2640V4
2.4 GHz

overclocked clock speed (water)

E7-8891V4
2.8 GHz
E5-2640V4
2.4 GHz

TDP

E7-8891V4
165W
E5-2640V4
90W

Specifications Full list of technical specs

summary

E7-8891V4  vs
E5-2640V4 
Clock speed 2.8 GHz 2.4 GHz
Turbo clock speed 3.5 GHz 3.4 GHz
Cores Deca core Deca core

features

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

power consumption

TDP 165W 90W
Annual home energy cost 39.75 $/year 21.68 $/year
Annual commercial energy cost 144.54 $/year 78.84 $/year
Typical power consumption 134.06W 73.13W

bus

Architecture FSB QPI
Number of links 3 2
Transfer rate 9,600 MT/s 8,000 MT/s

details

E7-8891V4  vs
E5-2640V4 
Architecture x86-64 x86-64
Threads 20 20
Manufacture process 14 nm 14 nm
Max CPUs 8 2
Operating temperature Unknown - 79°C Unknown - 76°C

overclocking

Overclocked clock speed 2.8 GHz 2.4 GHz
Overclocked clock speed (Water) 2.8 GHz 2.4 GHz
Overclocked clock speed (Air) 2.8 GHz 2.4 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 3,145,728 MB 1,572,864 MB
Intel E7-8891V4
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Intel E5-2640V4
Report a correction

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