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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


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


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

memory controller

Memory controller Built-in Built-in
Memory type
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


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


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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