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Differences What are the advantages of each

Front view of Intel E7-4809V4

Reasons to consider the
Intel E7-4809V4

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Supports more RAM 3,145,728 MB vs 1,572,864 MB Supports 2x more RAM
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Newer Apr, 2016 vs Jan, 2016 Release date 3 months later
Front view of Intel E5-2620V4

Reasons to consider the
Intel E5-2620V4

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Significantly lower typical power consumption 69.06W vs 93.44W More than 25% lower typical power consumption
Better overclocked clock speed (Air) 2.37 GHz vs 2 GHz Around 20% better overclocked clock speed (Air)
Higher Maximum operating temperature 74 °C vs 69 °C More than 5% higher Maximum operating temperature
Significantly lower annual commercial energy cost 74.46 $/year vs 100.74 $/year More than 25% lower annual commercial energy cost
Significantly lower annual home energy cost 20.48 $/year vs 27.7 $/year More than 25% lower annual home energy cost
Better overclocked clock speed (Water) 2.58 GHz vs 2 GHz Around 30% better overclocked clock speed (Water)

Features Key features of the E7-4809V4  vs E5-2620V4 

clock speed

E7-4809V4
2.1 GHz
E5-2620V4
2.1 GHz

overclocked clock speed (air)

E7-4809V4
2 GHz
E5-2620V4
2.37 GHz

overclocked clock speed (water)

E7-4809V4
2 GHz
E5-2620V4
2.58 GHz

TDP

E7-4809V4
115W
E5-2620V4
85W

Specifications Full list of technical specs

summary

E7-4809V4  vs
E5-2620V4 
Clock speed 2.1 GHz 2.1 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 2.0
AVX
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 115W 85W
Annual home energy cost 27.7 $/year 20.48 $/year
Annual commercial energy cost 100.74 $/year 74.46 $/year
Typical power consumption 93.44W 69.06W

bus

Architecture FSB QPI
Number of links 3 2
Transfer rate 6,400 MT/s 8,000 MT/s

details

E7-4809V4  vs
E5-2620V4 
Architecture x86-64 x86-64
Threads 16 16
Manufacture process 14 nm 14 nm
Max CPUs 4 2
Operating temperature Unknown - 69°C Unknown - 74°C

overclocking

Overclocked clock speed 2 GHz 2.37 GHz
Overclocked clock speed (Water) 2 GHz 2.58 GHz
Overclocked clock speed (Air) 2 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 3,145,728 MB 1,572,864 MB
Intel E7-4809V4
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Intel E5-2620V4
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