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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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Significantly more l2 cache 3 MB vs 2 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
More l3 cache 30 MB vs 15 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more RAM 4,194,304 MB vs 65,996.8 MB Supports more than 63.5x more RAM
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 10 vs 6 4 more cores; run more applications at once
More threads 20 vs 12 8 more threads
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Lower typical power consumption 105.63W vs 121.88W Around 15% lower typical power consumption
Lower annual commercial energy cost 113.88 $/year vs 131.4 $/year Around 15% lower annual commercial energy cost
Lower annual home energy cost 31.32 $/year vs 36.13 $/year Around 15% lower annual home energy cost
Front view of Intel Core i7 3970X

Reasons to consider the
Intel Core i7 3970X

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Significantly higher turbo clock speed 4 GHz vs 2.8 GHz Around 45% higher turbo clock speed
Significantly higher clock speed 3.5 GHz vs 2.4 GHz More than 45% higher clock speed
Newer Nov, 2012 vs Apr, 2011 Release date over 1 years later
Better overclocked clock speed (Air) 4.57 GHz vs 2.51 GHz More than 80% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.43 GHz vs 2.4 GHz Around 85% better overclocked clock speed (Water)

Features Key features of the Xeon E7-8870  vs Core i7 3970X 

clock speed

Xeon E7-8870
2.4 GHz
Core i7 3970X
3.5 GHz

turbo clock speed

Xeon E7-8870
2.8 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E7-8870
2.51 GHz
Core i7 3970X
4.57 GHz

overclocked clock speed (water)

Xeon E7-8870
2.4 GHz
Core i7 3970X
4.43 GHz

Specifications Full list of technical specs

summary

Xeon E7-8870  vs
Core i7 3970X 
Clock speed 2.4 GHz 3.5 GHz
Turbo clock speed 2.8 GHz 4 GHz
Cores Deca core Hexa core
Socket type
LGA 1567
LGA 2011

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 150W
Annual home energy cost 31.32 $/year 36.13 $/year
Annual commercial energy cost 113.88 $/year 131.4 $/year
Typical power consumption 105.63W 121.88W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 51,200 MB/s
Maximum memory size 4,194,304 MB 65,996.8 MB

details

Xeon E7-8870  vs
Core i7 3970X 
Architecture x86-64 x86-64
Threads 20 12
L2 cache 3 MB 2 MB
L2 cache per core 0.3 MB/core 0.33 MB/core
L3 cache 30 MB 15 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 8 1
Clock multiplier 18 35
Operating temperature Unknown - 69°C Unknown - 66.8°C

overclocking

Overclocked clock speed 2.51 GHz 4.57 GHz
Overclocked clock speed (Water) 2.4 GHz 4.43 GHz
Overclocked clock speed (Air) 2.51 GHz 4.57 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

bus

Architecture QPI DMI 2.0
Number of links 1 1
Transfer rate 6,400 MT/s 5,000 MT/s
Intel Xeon E7-8870
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Intel Core i7 3970X
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