CPUBoss Review Our evaluation of 6700K vs 7650K among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

9.6

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 6700K 

CPUBoss recommends the Intel Core i7 6700K  based on its performance and single-core performance.

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VS

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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Higher clock speed 4 GHz vs 3.3 GHz More than 20% higher clock speed
Much better 3DMark06 CPU score 80.5 vs 41.2 More than 95% better 3DMark06 CPU score
Higher turbo clock speed 4.2 GHz vs 3.8 GHz More than 10% higher turbo clock speed
Significantly better PassMark (Single core) score 2,349 vs 1,439 Around 65% better PassMark (Single core) score
Significantly better PassMark score 11,109 vs 4,936 More than 2.2x better PassMark score
More threads 8 vs 4 Twice as many threads
Better overclocked clock speed (Air) 4.61 GHz vs 4.25 GHz Around 10% better overclocked clock speed (Air)
Newer Jul, 2015 vs Jan, 2015 Release date 5 months later
Front view of AMD A8 7650K

Reasons to consider the
AMD A8 7650K

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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
Much better performance per dollar 3.39 pt/$ vs 0.91 pt/$ Around 3.8x better performance per dollar
Much higher GPU clock speed 720 MHz vs 350 MHz More than 2x higher GPU clock speed
Much better CompuBench 1.5 video composition score 25.56 fps vs 13.68 fps More than 85% better CompuBench 1.5 video composition score
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core

Benchmarks Real world tests of Core i7 6700K vs A8 7650K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6700K
35.02 mHash/s
A8 7650K
69.09 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6700K
26.72 mPixels/s
A8 7650K
12 mPixels/s

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Core i7 6700K
302.88 fps
A8 7650K
301.16 fps

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 6700K
1.82 fps
A8 7650K
1.27 fps

CompuBench 1.5 (Video composition) Data courtesy CompuBench

Core i7 6700K
13.68 fps
A8 7650K
25.56 fps

Cinebench R10 32-Bit

Core i7 6700K
36,746
A8 7650K
12,955

PassMark Data courtesy Passmark

Core i7 6700K
11,109
A8 7650K
4,936

PassMark (Single Core)

A8 7650K
1,439

Specifications Full list of technical specs

summary

Core i7 6700K  vs
A8 7650K 
Clock speed 4 GHz 3.3 GHz
Turbo clock speed 4.2 GHz 3.8 GHz
Cores Quad core Quad core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
SSE4
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
AMD-V
Supplemental SSE3
AES
TBM
AVX 2.0

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
Performance per watt 3.49 pt/W 3.21 pt/W
Typical power consumption 73.94W 77.19W

details

Core i7 6700K  vs
A8 7650K 
Threads 8 4
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 1 MB/core

overclocking

Overclocked clock speed 4.61 GHz 4.25 GHz
Overclocked clock speed (Water) 4.77 GHz 4.84 GHz
Overclocked clock speed (Air) 4.61 GHz 4.25 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 AMD Radeon AD765KXBI44JAAD765KXBJABOXAD765KXBJASBX
GPU clock speed 350 MHz 720 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-2133
DDR3L-1600
Channels Dual Channel Dual Channel
Maximum bandwidth 25,600 MB/s 34,133.32 MB/s
Intel Core i7 6700K
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AMD A8 7650K
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