CPUBoss Review Our evaluation of 6700K vs 2700K 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

No winner declared

Too close to call

Cast your vote Do you agree or disagree with CPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!
VS

Differences What are the advantages of each

Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

Report a correction
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
Much better CompuBench 1.5 ocean surface simulation score 302.88 fps vs 74.43 fps More than 4x better CompuBench 1.5 ocean surface simulation score
Higher turbo clock speed 4.2 GHz vs 3.9 GHz Around 10% higher turbo clock speed
More number of displays supported 3 vs 2 1 more number of displays supported
Newer Jul, 2015 vs Oct, 2011 Release date over 3 years later
Better PassMark (Single core) score 2,349 vs 2,003 More than 15% better PassMark (Single core) score
Better PassMark score 11,109 vs 8,930 Around 25% better PassMark score
Front view of Intel Core i7 2700K

Reasons to consider the
Intel Core i7 2700K

Report a correction
Much higher GPU clock speed 850 MHz vs 350 MHz Around 2.5x higher GPU clock speed
Much better performance per dollar 2.51 pt/$ vs 0.91 pt/$ More than 2.8x better performance per dollar
Significantly better turbo clock speed 1,350 MHz vs 1,150 MHz More than 15% better turbo clock speed
Much better performance per watt 9.26 pt/W vs 3.49 pt/W Around 2.8x better performance per watt
Better overclocked clock speed (Air) 5.11 GHz vs 4.61 GHz More than 10% better overclocked clock speed (Air)
Higher Maximum operating temperature 72.6 °C vs 64 °C Around 15% higher Maximum operating temperature

Benchmarks Real world tests of Core i7 6700K vs 2700K

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Core i7 6700K
302.88 fps
Core i7 2700K
74.43 fps

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 2700K
2,600,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6700K  vs
2700K 
Clock speed 4 GHz 3.5 GHz
Turbo clock speed 4.2 GHz 3.9 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
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 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 9.26 pt/W
Typical power consumption 73.94W 77.19W

bus

Architecture FSB DMI
Number of links 0 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Core i7 6700K  vs
2700K 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 14 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 72.6°C

overclocking

Overclocked clock speed 4.61 GHz 5.11 GHz
Overclocked clock speed (Water) 4.77 GHz 4.78 GHz
Overclocked clock speed (Air) 4.61 GHz 5.11 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 3000
Number of displays supported 3 2
GPU clock speed 350 MHz 850 MHz
Turbo clock speed 1,150 MHz 1,350 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 65,536 MB 32,768 MB
Intel Core i7 6700K
Report a correction
Intel Core i7 2700K
Report a correction

Read more

Comments

Showing 1 comment.
This is not accurate, for one it doesn't mention ddr4 which gives a huge difference m.2 drive also huge difference and pcie 3.0! The first day I bought mine I used the automated overclock on my Asus mobo which is one of the cheapest models (can't remember which one) with an aircooler and was at 5.0 I upgraded to a lepa water cooler 240mm radiator a week later overclocked to 5.2 probably could have gone higher my pc is on 24/7 almost a year without a single issue not to mention my 3200mhz 64gb ram in only 4 slots with my temps never going over 30C. This comparison can not be correct.
comments powered by Disqus