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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 CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Supports more RAM 4,194,304 MB vs 65,536 MB Supports 64x more RAM
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
Much lower typical power consumption 105.63W vs 176.72W More than 40% lower typical power consumption
Significantly 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 cores 10 vs 6 4 more cores; run more applications at once
More threads 20 vs 12 8 more threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower annual home energy cost 31.32 $/year vs 56.39 $/year Around 45% lower annual home energy cost
Much lower annual commercial energy cost 113.88 $/year vs 184.84 $/year Around 40% lower annual commercial energy cost
Front view of Intel Core i7 3960X

Reasons to consider the
Intel Core i7 3960X

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Significantly higher turbo clock speed 3.9 GHz vs 2.67 GHz More than 45% higher turbo clock speed
Significantly higher clock speed 3.3 GHz vs 2.26 GHz More than 45% higher clock speed
Much better overclocked clock speed (Air) 4.76 GHz vs 2.51 GHz More than 90% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.58 GHz vs 2.27 GHz More than 2x better overclocked clock speed (Water)
Newer Nov, 2011 vs Apr, 2011 Release date 7 months later

Features Key features of the Xeon E7-8860  vs Core i7 3960X 

clock speed

Xeon E7-8860
2.26 GHz
Core i7 3960X
3.3 GHz

turbo clock speed

Xeon E7-8860
2.67 GHz
Core i7 3960X
3.9 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E7-8860
2.51 GHz
Core i7 3960X
4.76 GHz

overclocked clock speed (water)

Xeon E7-8860
2.27 GHz
Core i7 3960X
4.58 GHz

Specifications Full list of technical specs

summary

Xeon E7-8860  vs
Core i7 3960X 
Clock speed 2.26 GHz 3.3 GHz
Turbo clock speed 2.67 GHz 3.9 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 130W
Annual home energy cost 31.32 $/year 56.39 $/year
Annual commercial energy cost 113.88 $/year 184.84 $/year
Typical power consumption 105.63W 176.72W

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 65,536 MB

details

Xeon E7-8860  vs
Core i7 3960X 
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 24 MB 15 MB
L3 cache per core 2.4 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 8 1
Clock multiplier 17 33
Operating temperature Unknown - 69°C Unknown - 66.8°C

overclocking

Overclocked clock speed 2.51 GHz 4.76 GHz
Overclocked clock speed (Water) 2.27 GHz 4.58 GHz
Overclocked clock speed (Air) 2.51 GHz 4.76 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 E7-8860
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Intel Core i7 3960X
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