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Differences What are the advantages of each

Front view of Intel Xeon E7-8860

Reasons to consider the
Intel Xeon E7-8860

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Supports more RAM 4,194,304 MB vs 786,432 MB Supports more than 5.2x more RAM
Much more l3 cache 24 MB vs 15 MB 60% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 20 vs 12 8 more threads
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Front view of Intel Xeon E5-2620 v3

Reasons to consider the
Intel Xeon E5-2620 v3

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Significantly higher turbo clock speed 3.2 GHz vs 2.67 GHz Around 20% higher turbo clock speed
Higher clock speed 2.4 GHz vs 2.26 GHz More than 5% higher clock speed
Much lower typical power consumption 69.06W vs 105.63W Around 35% lower typical power consumption
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Better overclocked clock speed (Air) 2.66 GHz vs 2.51 GHz More than 5% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.87 GHz vs 2.27 GHz More than 25% better overclocked clock speed (Water)
Much lower annual commercial energy cost 74.46 $/year vs 113.88 $/year Around 35% lower annual commercial energy cost
Much lower annual home energy cost 20.48 $/year vs 31.32 $/year Around 35% lower annual home energy cost
Newer Jul, 2014 vs Apr, 2011 Release date over 3 years later

Features Key features of the Xeon E7-8860  vs E5-2620 v3 

clock speed

Xeon E7-8860
2.26 GHz
Xeon E5-2620 v3
2.4 GHz

turbo clock speed

Xeon E7-8860
2.67 GHz
Xeon E5-2620 v3
3.2 GHz

L3 cache

overclocked clock speed (air)

Xeon E7-8860
2.51 GHz
Xeon E5-2620 v3
2.66 GHz

overclocked clock speed (water)

Xeon E7-8860
2.27 GHz
Xeon E5-2620 v3
2.87 GHz

Specifications Full list of technical specs

summary

Xeon E7-8860  vs
E5-2620 v3 
Clock speed 2.26 GHz 2.4 GHz
Turbo clock speed 2.67 GHz 3.2 GHz
Cores Deca core Hexa 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 130W 85W
Annual home energy cost 31.32 $/year 20.48 $/year
Annual commercial energy cost 113.88 $/year 74.46 $/year
Typical power consumption 105.63W 69.06W

bus

Architecture QPI QPI
Number of links 1 2
Data rate 25,600 MB/s 64,000 MB/s
Transfer rate 6,400 MT/s 8,000 MT/s
Clock speed 3,200 MHz 4,000 MHz

details

Xeon E7-8860  vs
E5-2620 v3 
Architecture x86-64 x86-64
Threads 20 12
L3 cache 24 MB 15 MB
L3 cache per core 2.4 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 8 2
Operating temperature Unknown - 69°C Unknown - 72.6°C

overclocking

Overclocked clock speed 2.51 GHz 2.66 GHz
Overclocked clock speed (Water) 2.27 GHz 2.87 GHz
Overclocked clock speed (Air) 2.51 GHz 2.66 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
Memory type
DDR3
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 6,400 MB/s
Maximum memory size 4,194,304 MB 786,432 MB
Intel Xeon E7-8860
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Intel Xeon E5-2620 v3
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