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Differences What are the advantages of each

Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Much newer manufacturing process 14 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 4 GHz vs 2.4 GHz More than 65% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
More l3 cache 8 MB vs 2 MB 4x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 4.61 GHz vs 2.41 GHz More than 90% better overclocked clock speed (Air)
Much more l3 cache per core 2 MB/core vs 0.5 MB/core 4x more l3 cache per core
Newer Jul, 2015 vs Apr, 2008 Release date over 7 years later
Lower typical power consumption 73.94W vs 85.31W Around 15% lower typical power consumption
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Water) 4.77 GHz vs 2.4 GHz Around 2x better overclocked clock speed (Water)
Lower annual commercial energy cost 79.72 $/year vs 91.98 $/year Around 15% lower annual commercial energy cost
Lower annual home energy cost 21.92 $/year vs 25.29 $/year Around 15% lower annual home energy cost
Front view of AMD Opteron 8358 SE

Reasons to consider the
AMD Opteron 8358 SE

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core

Features Key features of the Core i7 6700K  vs Opteron 8358 SE 

clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Core i7 6700K
4.61 GHz
Opteron 8358 SE
2.41 GHz

overclocked clock speed (water)

Core i7 6700K
4.77 GHz
Opteron 8358 SE
2.4 GHz

Specifications Full list of technical specs

summary

Core i7 6700K  vs
Opteron 8358 SE 
Clock speed 4 GHz 2.4 GHz
Cores Quad core Quad core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 91W 105W
Annual home energy cost 21.92 $/year 25.29 $/year
Annual commercial energy cost 79.72 $/year 91.98 $/year
Typical power consumption 73.94W 85.31W

details

Core i7 6700K  vs
Opteron 8358 SE 
Threads 8 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 2 MB
L3 cache per core 2 MB/core 0.5 MB/core
Manufacture process 14 nm 65 nm
Max CPUs 1 8

overclocking

Overclocked clock speed 4.61 GHz 2.41 GHz
Overclocked clock speed (Water) 4.77 GHz 2.4 GHz
Overclocked clock speed (Air) 4.61 GHz 2.41 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 530 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,150 MHz N/A
Intel Core i7 6700K
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AMD Opteron 8358 SE
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