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Differences What are the advantages of each

Front view of Intel Xeon E7-8870

Reasons to consider the
Intel Xeon E7-8870

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Supports more RAM 4,194,304 MB vs 786,432 MB Supports more than 5.2x more RAM
Higher clock speed 2.4 GHz vs 2.3 GHz Around 5% higher clock speed
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Lower typical power consumption 105.63W vs 117.81W More than 10% lower typical power consumption
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Lower annual commercial energy cost 113.88 $/year vs 127.02 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 31.32 $/year vs 34.93 $/year More than 10% lower annual home energy cost
Front view of Intel Xeon E5-2699 v3

Reasons to consider the
Intel Xeon E5-2699 v3

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Much more l3 cache 45 MB vs 30 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Much higher turbo clock speed 3.6 GHz vs 2.8 GHz Around 30% higher turbo clock speed
More threads 36 vs 20 16 more threads
Much better overclocked clock speed (Air) 2.84 GHz vs 2.51 GHz Around 15% better overclocked clock speed (Air)
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Water) 3.17 GHz vs 2.4 GHz More than 30% better overclocked clock speed (Water)
Newer Jul, 2014 vs Apr, 2011 Release date over 3 years later

Features Key features of the Xeon E7-8870  vs E5-2699 v3 

clock speed

Xeon E7-8870
2.4 GHz
Xeon E5-2699 v3
2.3 GHz

turbo clock speed

Xeon E7-8870
2.8 GHz
Xeon E5-2699 v3
3.6 GHz

L3 cache

overclocked clock speed (air)

Xeon E7-8870
2.51 GHz
Xeon E5-2699 v3
2.84 GHz

overclocked clock speed (water)

Xeon E7-8870
2.4 GHz
Xeon E5-2699 v3
3.17 GHz

Specifications Full list of technical specs

summary

Xeon E7-8870  vs
E5-2699 v3 
Clock speed 2.4 GHz 2.3 GHz
Turbo clock speed 2.8 GHz 3.6 GHz
Cores Deca 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 130W 145W
Annual home energy cost 31.32 $/year 34.93 $/year
Annual commercial energy cost 113.88 $/year 127.02 $/year
Typical power consumption 105.63W 117.81W

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

details

Xeon E7-8870  vs
E5-2699 v3 
Architecture x86-64 x86-64
Threads 20 36
L3 cache 30 MB 45 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 8 2
Operating temperature Unknown - 69°C Unknown - 76.4°C

overclocking

Overclocked clock speed 2.51 GHz 2.84 GHz
Overclocked clock speed (Water) 2.4 GHz 3.17 GHz
Overclocked clock speed (Air) 2.51 GHz 2.84 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 E7-8870
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Intel Xeon E5-2699 v3
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