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Differences What are the advantages of each

Front view of Intel Xeon E5 2620 v2

Reasons to consider the
Intel Xeon E5 2620 v2

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Significantly lower typical power consumption 65W vs 85.31W Around 25% lower typical power consumption
Significantly lower annual home energy cost 19.27 $/year vs 25.29 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 70.08 $/year vs 91.98 $/year Around 25% lower annual commercial energy cost
Front view of Intel E5-2658V4

Reasons to consider the
Intel E5-2658V4

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Much more l3 cache 35 MB vs 15 MB More than 2.2x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 14 vs 6 8 more cores; run more applications at once
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More threads 28 vs 12 16 more threads
Higher clock speed 2.3 GHz vs 2.1 GHz Around 10% higher clock speed
Slightly higher turbo clock speed 2.8 GHz vs 2.6 GHz Around 10% higher turbo clock speed
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Significantly higher Maximum operating temperature 91 °C vs 71 °C Around 30% higher Maximum operating temperature
Newer Jan, 2016 vs Jul, 2013 Release date over 2 years later
Slightly better overclocked clock speed (Water) 2.3 GHz vs 2.1 GHz Around 10% better overclocked clock speed (Water)

Features Key features of the Xeon E5 2620 v2  vs E5-2658V4 

clock speed

Xeon E5 2620 v2
2.1 GHz
E5-2658V4
2.3 GHz

turbo clock speed

Xeon E5 2620 v2
2.6 GHz
E5-2658V4
2.8 GHz

L3 cache

overclocked clock speed (air)

Xeon E5 2620 v2
2.25 GHz
E5-2658V4
2.3 GHz

overclocked clock speed (water)

Xeon E5 2620 v2
2.1 GHz
E5-2658V4
2.3 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5 2620 v2  vs
E5-2658V4 
Clock speed 2.1 GHz 2.3 GHz
Turbo clock speed 2.6 GHz 2.8 GHz
Cores Hexa core Processing Cores

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 105W
Annual home energy cost 19.27 $/year 25.29 $/year
Annual commercial energy cost 70.08 $/year 91.98 $/year
Typical power consumption 65W 85.31W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 57,600 MB/s 76,800 MB/s
Transfer rate 7,200 MT/s 9,600 MT/s
Clock speed 3,600 MHz 4,800 MHz

details

Xeon E5 2620 v2  vs
E5-2658V4 
Architecture x86-64 x86-64
Threads 12 28
L3 cache 15 MB 35 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 71°C Unknown - 91°C

overclocking

Overclocked clock speed 2.25 GHz 2.3 GHz
Overclocked clock speed (Water) 2.1 GHz 2.3 GHz
Overclocked clock speed (Air) 2.25 GHz 2.3 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 786,432 MB 1,572,864 MB
Intel Xeon E5 2620 v2
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Intel E5-2658V4
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