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Intel Core i7 6700K

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Front view of Intel Core i7 6700K

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 1.6 GHz Around 2.5x 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 l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark (Single core) score 2,349 vs 449 Around 5.2x better PassMark (Single core) score
Much better PassMark score 11,109 vs 374 Around 29.8x better PassMark score
Much better overclocked clock speed (Air) 4.61 GHz vs 2.4 GHz More than 90% better overclocked clock speed (Air)
More threads 8 vs 1 7 more threads
More cores 4 vs 1 3 more cores; run more applications at once
Much better overclocked clock speed (Water) 4.77 GHz vs 1.6 GHz Around 3x better overclocked clock speed (Water)
Better performance per watt 3.49 pt/W vs 2.19 pt/W Around 60% better performance per watt
Front view of AMD Athlon 64 2600+

Reasons to consider the
AMD Athlon 64 2600+

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Much lower typical power consumption 12.19W vs 73.94W 6.1x lower typical power consumption
Significantly higher Maximum operating temperature 85 °C vs 64 °C Around 35% higher Maximum operating temperature
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 3.61 $/year vs 21.92 $/year 6.1x lower annual home energy cost
Much lower annual commercial energy cost 13.14 $/year vs 79.72 $/year 6.1x lower annual commercial energy cost

Benchmarks Real world tests of Core i7 6700K vs Athlon 64 2600+

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6700K  vs
Athlon 64 2600+ 
Clock speed 4 GHz 1.6 GHz
Cores Quad core Single core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
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
Athlon 64 2600+ 
Threads 8 1
L2 cache 1 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 14 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 85°C

overclocking

Overclocked clock speed 4.61 GHz 2.4 GHz
Overclocked clock speed (Water) 4.77 GHz 1.6 GHz
Overclocked clock speed (Air) 4.61 GHz 2.4 GHz

power consumption

TDP 91W 15W
Annual home energy cost 21.92 $/year 3.61 $/year
Annual commercial energy cost 79.72 $/year 13.14 $/year
Performance per watt 3.49 pt/W 2.19 pt/W
Typical power consumption 73.94W 12.19W
Intel Core i7 6700K
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AMD Athlon 64 2600+
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