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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 higher clock speed 4 GHz vs 1.9 GHz More than 2x higher clock speed
Much newer manufacturing process 14 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
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 more l3 cache per core 2 MB/core vs 0.5 MB/core 4x more l3 cache per core
More threads 8 vs 4 Twice as many threads
Front view of AMD Third Generation Opteron 8347

Reasons to consider the
AMD Third Generation Opteron 8347

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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
Newer Aug, 2020 vs Jul, 2015 Release date over 5 years 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 Third Generation Opteron 8347 

Specifications Full list of technical specs

summary

Core i7 6700K  vs
Third Generation Opteron 8347 
Clock speed 4 GHz 1.9 GHz
Cores Quad core Quad core

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

details

Core i7 6700K  vs
Third Generation Opteron 8347 
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

power consumption

TDP 91W 95W
Annual home energy cost 21.92 $/year 22.89 $/year
Annual commercial energy cost 79.72 $/year 83.22 $/year
Typical power consumption 73.94W 77.19W
Intel Core i7 6700K
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AMD Third Generation Opteron 8347
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