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Differences What are the advantages of each

Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Higher clock speed 2.4 GHz vs 2.1 GHz Around 15% higher clock speed
Much lower typical power consumption 65W vs 97.5W Around 35% lower typical power consumption
Much better overclocked clock speed (Air) 3.75 GHz vs 2.1 GHz Around 80% better overclocked clock speed (Air)
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Much better overclocked clock speed (Water) 4.33 GHz vs 2.55 GHz More than 70% better overclocked clock speed (Water)
Much lower annual home energy cost 19.27 $/year vs 28.91 $/year Around 35% lower annual home energy cost
Much lower annual commercial energy cost 70.08 $/year vs 105.12 $/year Around 35% lower annual commercial energy cost
Front view of Intel E5-2683V4

Reasons to consider the
Intel E5-2683V4

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Much more l3 cache 40 MB vs 12 MB More than 3.2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 16 vs 4 12 more cores; run more applications at once
More threads 32 vs 8 24 more threads
Higher turbo clock speed 3 GHz vs 2.66 GHz Around 15% higher turbo clock speed
Supports more RAM 1,572,864 MB vs 294,912 MB Supports more than 5.2x more RAM
Newer Jan, 2016 vs Mar, 2010 Release date over 5 years later
Higher Maximum operating temperature 84 °C vs 77.6 °C Around 10% higher Maximum operating temperature

Features Key features of the Xeon E5620  vs E5-2683V4 

clock speed

Xeon E5620
2.4 GHz
E5-2683V4
2.1 GHz

turbo clock speed

Xeon E5620
2.66 GHz
E5-2683V4
3 GHz

L3 cache

Xeon E5620
12 MB
E5-2683V4
40 MB

overclocked clock speed (air)

Xeon E5620
3.75 GHz
E5-2683V4
2.1 GHz

overclocked clock speed (water)

Xeon E5620
4.33 GHz
E5-2683V4
2.55 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5620  vs
E5-2683V4 
Clock speed 2.4 GHz 2.1 GHz
Turbo clock speed 2.66 GHz 3 GHz
Cores Quad core 16 core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 120W
Annual home energy cost 19.27 $/year 28.91 $/year
Annual commercial energy cost 70.08 $/year 105.12 $/year
Typical power consumption 65W 97.5W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 46,928 MB/s 76,800 MB/s
Transfer rate 5,860 MT/s 9,600 MT/s
Clock speed 2,930 MHz 4,800 MHz

details

Xeon E5620  vs
E5-2683V4 
Architecture x86-64 x86-64
Threads 8 32
L3 cache 12 MB 40 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 77.6°C Unknown - 84°C

overclocking

Overclocked clock speed 3.75 GHz 2.1 GHz
Overclocked clock speed (Water) 4.33 GHz 2.55 GHz
Overclocked clock speed (Air) 3.75 GHz 2.1 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 Triple Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 294,912 MB 1,572,864 MB
Intel Xeon E5620
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Intel E5-2683V4
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