CPUBoss Review Our evaluation of 6700K vs 4670K among all CPUs

Performance

Benchmark performance using all cores
Core i7 6700K
6.5
Core i5 4670K
6.9
Core i7 4790K
7.7
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i7 6700K
8.0
Core i5 4670K
9.3
Core i7 4790K
9.6
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i7 6700K
n.d.
Core i5 4670K
9.3
Core i7 4790K
9.6
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i7 6700K
7.9
Core i5 4670K
7.4
Core i7 4790K
7.3
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i7 6700K
5.2
Core i5 4670K
5.3
Core i7 4790K
5.3
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i7 6700K
5.9
Core i5 4670K
7.0
Core i7 4790K
6.4
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more
8.8

CPUBoss Score

Combination of all six facets
Core i7 6700K
8.2
Core i5 4670K
8.8
Core i7 4790K
8.8

Winner
Intel Core i7 6700K 

CPUBoss recommends the Intel Core i7 6700K  based on its performance.

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Intel Core i7 6700K

CPUBoss Winner
 Front view of Intel Core i7 6700K
Front view of Intel Core i5 4670K

Intel Core i5 4670K

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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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Higher clock speed 4 GHz vs 3.4 GHz Around 20% higher clock speed
Higher turbo clock speed 4.2 GHz vs 3.8 GHz More than 10% higher turbo clock speed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better CompuBench 1.5 ocean surface simulation score 289.64 fps vs 241.38 fps Around 20% better CompuBench 1.5 ocean surface simulation score
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Better PassMark score 11,109 vs 7,618 More than 45% better PassMark score
More threads 8 vs 4 Twice as many threads
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Newer Jul, 2015 vs Apr, 2013 Release date over 2 years later
Better PassMark (Single core) score 2,349 vs 2,195 More than 5% better PassMark (Single core) score
Better overclocked clock speed (Water) 4.77 GHz vs 4.55 GHz Around 5% better overclocked clock speed (Water)
Front view of Intel Core i5 4670K

Reasons to consider the
Intel Core i5 4670K

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Much better performance per dollar 4.9 pt/$ vs 0.9 pt/$ Around 5.5x better performance per dollar
Much better performance per watt 11.19 pt/W vs 3.45 pt/W Around 3.2x better performance per watt
Better turbo clock speed 1,200 MHz vs 1,150 MHz Around 5% better turbo clock speed
Lower typical power consumption 68.25W vs 73.94W Around 10% lower typical power consumption
Higher Maximum operating temperature 72.72 °C vs 64 °C Around 15% higher Maximum operating temperature
Lower annual home energy cost 20.24 $/year vs 21.92 $/year Around 10% lower annual home energy cost
Lower annual commercial energy cost 73.58 $/year vs 79.72 $/year Around 10% lower annual commercial energy cost

Benchmarks Real world tests of Core i7 6700K vs i5 4670K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6700K
33.6 mHash/s
Core i5 4670K
16.37 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6700K
28.43 mPixels/s
Core i5 4670K
17.14 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 6700K
1.66 fps
Core i5 4670K
1.72 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 6700K
17,583
Core i5 4670K
11,554

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 6700K
4,510
Core i5 4670K
3,569

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 6700K
6,010 MB/s
Core i5 4670K
4,930,000 MB/s

PassMark Data courtesy Passmark

Core i7 6700K
11,109
Core i5 4670K
7,618

PassMark (Single Core)

Core i7 6700K
2,349
Core i5 4670K
2,195

Specifications Full list of technical specs

summary

 Core i7 6700K  vs
i5 4670K 
Clock speed 4 GHz 3.4 GHz
Turbo clock speed 4.2 GHz 3.8 GHz
Cores Quad core Quad core
Is unlocked Yes Yes

features
Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 91W 84W
Annual home energy cost 21.92 $/year 20.24 $/year
Annual commercial energy cost 79.72 $/year 73.58 $/year
Performance per watt 3.45 pt/W 11.19 pt/W
Typical power consumption 73.94W 68.25W

bus
Architecture FSB DMI 2.0
Number of links 0 0
Transfer rate 8,000 MT/s 5,000 MT/s

details

 Core i7 6700K  vs
i5 4670K 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 14 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 72.72°C

overclocking
Overclocked clock speed 4.61 GHz 4.48 GHz
Overclocked clock speed (Water) 4.77 GHz 4.55 GHz
Overclocked clock speed (Air) 4.61 GHz 4.48 GHz

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 4600
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,150 MHz 1,200 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1600
DDR3-1333
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 65,536 MB 32,768 MB
Intel Core i7 6700K
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Intel Core i5 4670K
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