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Differences What are the advantages of each

Front view of Intel Xeon E7-4809 v3

Reasons to consider the
Intel Xeon E7-4809 v3

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Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 16 vs 8 Twice as many threads
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Newer Apr, 2015 vs Jul, 2014 Release date 9 months later
Front view of Intel Xeon E5-2623 v3

Reasons to consider the
Intel Xeon E5-2623 v3

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Much higher clock speed 3 GHz vs 2 GHz 50% higher clock speed
Much higher Maximum operating temperature 80.2 °C vs 70 °C Around 15% higher Maximum operating temperature
Lower typical power consumption 85.31W vs 93.44W Around 10% lower typical power consumption
Lower annual commercial energy cost 91.98 $/year vs 100.74 $/year Around 10% lower annual commercial energy cost
Lower annual home energy cost 25.29 $/year vs 27.7 $/year Around 10% lower annual home energy cost

Features Key features of the Xeon E7-4809 v3  vs E5-2623 v3 

clock speed

Specifications Full list of technical specs

summary

Xeon E7-4809 v3  vs
E5-2623 v3 
Clock speed 2 GHz 3 GHz
Cores Octa core Quad 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 42,666.64 MB/s 6,400 MB/s
Maximum memory size 1,572,864 MB 786,432 MB

details

Xeon E7-4809 v3  vs
E5-2623 v3 
Architecture x86-64 x86-64
Threads 16 8
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Operating temperature Unknown - 70°C Unknown - 80.2°C

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

power consumption

TDP 115W 105W
Annual home energy cost 27.7 $/year 25.29 $/year
Annual commercial energy cost 100.74 $/year 91.98 $/year
Typical power consumption 93.44W 85.31W

bus

Architecture QPI QPI
Number of links 3 2
Data rate 76,800 MB/s 64,000 MB/s
Transfer rate 6,400 MT/s 8,000 MT/s
Clock speed 3,200 MHz 4,000 MHz
Intel Xeon E7-4809 v3
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Intel Xeon E5-2623 v3
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