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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 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 4 GHz vs 3.5 GHz Around 15% higher clock speed
Significantly lower typical power consumption 73.94W vs 93.44W More than 20% lower typical power consumption
More threads 8 vs 4 Twice as many threads
Significantly lower annual commercial energy cost 79.72 $/year vs 100.74 $/year More than 20% lower annual commercial energy cost
Significantly lower annual home energy cost 21.92 $/year vs 27.7 $/year More than 20% lower annual home energy cost
Front view of AMD Opteron 6208

Reasons to consider the
AMD Opteron 6208

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
More l3 cache 16 MB vs 8 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 4 MB/core vs 2 MB/core 2x more l3 cache per core
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core

Features Key features of the Core i7 6700K  vs Opteron 6208 

clock speed

Opteron 6208
3.5 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Core i7 6700K  vs
Opteron 6208 
Clock speed 4 GHz 3.5 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
Supplemental SSE3
AES
AVX 2.0

details

Core i7 6700K  vs
Opteron 6208 
Threads 8 4
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 8 MB 16 MB
L3 cache per core 2 MB/core 4 MB/core
Manufacture process 14 nm 32 nm
Max CPUs 1 4

power consumption

TDP 91W 115W
Annual home energy cost 21.92 $/year 27.7 $/year
Annual commercial energy cost 79.72 $/year 100.74 $/year
Typical power consumption 73.94W 93.44W

bus

Architecture FSB HyperTransport 3.0
Transfer rate 8,000 MT/s 6,400 MT/s
Intel Core i7 6700K
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AMD Opteron 6208
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