CPUBoss Review Our evaluation of 6700K vs 4930K 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

8.1

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 4930K 

CPUBoss recommends the Intel Core i7 4930K  based on its performance and value.

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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 3.4 GHz Around 20% higher clock speed
Much better cinebench r10 32Bit 1-core score 8,981 vs 6,903 More than 30% better cinebench r10 32Bit 1-core score
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher turbo clock speed 4.2 GHz vs 3.9 GHz Around 10% higher turbo clock speed
Significantly better CompuBench 1.5 face detection score 28.2 mPixels/s vs 7.61 mPixels/s Around 3.8x better CompuBench 1.5 face detection score
Lower typical power consumption 73.94W vs 105.63W 30% lower typical power consumption
Newer Jul, 2015 vs Jul, 2013 Release date over 2 years later
Better PassMark (Single core) score 2,349 vs 1,998 Around 20% better PassMark (Single core) score
Lower annual home energy cost 21.92 $/year vs 31.32 $/year 30% lower annual home energy cost
Lower annual commercial energy cost 79.72 $/year vs 113.88 $/year More than 30% lower annual commercial energy cost
Front view of Intel Core i7 4930K

Reasons to consider the
Intel Core i7 4930K

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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
Much better performance per dollar 2.37 pt/$ vs 1.08 pt/$ Around 2.2x better performance per dollar
More l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly better performance per watt 7.93 pt/W vs 3.44 pt/W More than 2.2x better performance per watt
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Higher Maximum operating temperature 66.8 °C vs 64 °C Around 5% higher Maximum operating temperature

Benchmarks Real world tests of Core i7 6700K vs 4930K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6700K
34.87 mHash/s
Core i7 4930K
9.56 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6700K
28.2 mPixels/s
Core i7 4930K
7.61 mPixels/s

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 6700K
6,010 MB/s
Core i7 4930K
2,430,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6700K  vs
4930K 
Clock speed 4 GHz 3.4 GHz
Turbo clock speed 4.2 GHz 3.9 GHz
Cores Quad core Hexa 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
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 91W 130W
Annual home energy cost 21.92 $/year 31.32 $/year
Annual commercial energy cost 79.72 $/year 113.88 $/year
Performance per watt 3.44 pt/W 7.93 pt/W
Typical power consumption 73.94W 105.63W

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
4930K 
Architecture x86-64 x86-64
Threads 8 12
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.33 MB/core
L3 cache 8 MB 12 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 14 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 66.8°C

overclocking

Overclocked clock speed 4.64 GHz 4.5 GHz
Overclocked clock speed (Water) 4.76 GHz 4.62 GHz
Overclocked clock speed (Air) 4.64 GHz 4.5 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 530 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,150 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3
Channels Dual Channel Quad Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 59,733.32 MB/s
Maximum memory size 65,536 MB 65,536 MB
Intel Core i7 6700K
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Intel Core i7 4930K
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