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Differences What are the advantages of each

Front view of Intel Xeon E7-4860

Reasons to consider the
Intel Xeon E7-4860

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Supports more RAM 2,097,152 MB vs 786,432 MB Supports around 2.8x more RAM
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E5-2660 v3

Reasons to consider the
Intel Xeon E5-2660 v3

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Much higher clock speed 2.6 GHz vs 2.26 GHz More than 15% higher clock speed
Much higher turbo clock speed 3.3 GHz vs 2.67 GHz Around 25% higher turbo clock speed
More l3 cache 25 MB vs 24 MB Around 5% more l3 cache; more data can be stored in the l3 cache for quick access later
Lower typical power consumption 85.31W vs 105.63W Around 20% 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
Newer Jul, 2014 vs Apr, 2011 Release date over 3 years later
Lower annual commercial energy cost 91.98 $/year vs 113.88 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 25.29 $/year vs 31.32 $/year Around 20% lower annual home energy cost

Features Key features of the Xeon E7-4860  vs E5-2660 v3 

clock speed

Xeon E7-4860
2.26 GHz
Xeon E5-2660 v3
2.6 GHz

turbo clock speed

Xeon E7-4860
2.67 GHz
Xeon E5-2660 v3
3.3 GHz

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4860  vs
E5-2660 v3 
Clock speed 2.26 GHz 2.6 GHz
Turbo clock speed 2.67 GHz 3.3 GHz
Cores Deca core Deca 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

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 2,097,152 MB 786,432 MB

details

Xeon E7-4860  vs
E5-2660 v3 
Architecture x86-64 x86-64
Threads 20 20
L3 cache 24 MB 25 MB
L3 cache per core 2.4 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 4 2
Operating temperature Unknown - 69°C Unknown - 79°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 130W 105W
Annual home energy cost 31.32 $/year 25.29 $/year
Annual commercial energy cost 113.88 $/year 91.98 $/year
Typical power consumption 105.63W 85.31W

bus

Architecture QPI QPI
Number of links 1 2
Data rate 25,600 MB/s 76,800 MB/s
Transfer rate 6,400 MT/s 9,600 MT/s
Clock speed 3,200 MHz 4,800 MHz
Intel Xeon E7-4860
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Intel Xeon E5-2660 v3
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