CPUBoss Review Our evaluation of 6700K vs 4790K among all CPUs


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


Are you paying a premium for performance?

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


CPUBoss Score

Combination of all six facets

Intel Core i7 4790K 

CPUBoss recommends the Intel Core i7 4790K  based on its value.

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Front view of Intel Core i7 4790K

Intel Core i7 4790K

CPUBoss Winner

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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Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Better geekbench 3 single core score 4,558 vs 4,004 Around 15% better geekbench 3 single core score
Better geekbench 2 (32-bit) score 17,169 vs 15,465 More than 10% better geekbench 2 (32-bit) score
Newer Jul, 2015 vs Apr, 2014 Release date over 1 years later
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Higher turbo clock speed 4.4 GHz vs 4.2 GHz Around 5% higher turbo clock speed
Much better performance per dollar 3.92 pt/$ vs 1.07 pt/$ Around 3.8x better performance per dollar
Better turbo clock speed 1,250 MHz vs 1,150 MHz Around 10% better turbo clock speed
Higher Maximum operating temperature 74.04 °C vs 64 °C More than 15% higher Maximum operating temperature
Better performance per watt 12.1 pt/W vs 4.12 pt/W Around 3x better performance per watt
Slightly better cinebench r10 32Bit 1-core score 9,317 vs 8,981 Around 5% better cinebench r10 32Bit 1-core score

Benchmarks Real world tests of Core i7 6700K vs 4790K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6700K
33.17 mHash/s
Core i7 4790K
16.1 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6700K
21.56 mPixels/s
Core i7 4790K
11.97 mPixels/s

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Core i7 6700K
299.3 fps
Core i7 4790K
233.07 fps

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 6700K
1.63 fps
Core i7 4790K
1.79 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 6700K
Core i7 4790K

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 6700K
6,080 MB/s
Core i7 4790K
5,140,000 MB/s

PassMark (Single Core)

Specifications Full list of technical specs


Core i7 6700K  vs
Clock speed 4 GHz 4 GHz
Turbo clock speed 4.2 GHz 4.4 GHz
Cores Quad core Quad core
Is unlocked Yes Yes


Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 91W 88W
Annual home energy cost 21.92 $/year 21.2 $/year
Annual commercial energy cost 79.72 $/year 77.09 $/year
Performance per watt 4.12 pt/W 12.1 pt/W
Typical power consumption 73.94W 71.5W


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


Core i7 6700K  vs
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 22 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 74.04°C


Overclocked clock speed 4.65 GHz 4.64 GHz
Overclocked clock speed (Water) 4.77 GHz 4.81 GHz
Overclocked clock speed (Air) 4.65 GHz 4.64 GHz

integrated graphics

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 1,250 MHz

memory controller

Memory controller Built-in Built-in
Memory type
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 i7 4790K
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Showing 25 comments.
4790K will go prfct with that ddr3. Not sure but the 6700K is ddr4
If the 7700k is indeed @ $350 as its marked on Amazon I will get one
Just watched Jaystwocents I7 7700k first build of the year. 5 GHZ OC @ 1.32 V. Yeah Im gonna have to check that out.
Lol, re-read my post. What you wrote is completely irrelevant to what I posted. I didn't take a side between 6700k and 4790k, I only mentioned that some details on the 6700k are wrong on the cpuboss site. They say that 6700k has a FSB, while it has a DMI 3 bus. But, just because you mentioned it, I'm sorry you had to "suppose" I "spent more than 300$", just to find out right now, that I grabbed the 6700k at 250€ from eBay, while in my country both 6700k and 4790k cost 400€ :)
Well, I am sorry you had to spend over $300.00 for you new i7-6700K alone (plus more $$$ for a new Mobo and RAM), only to find out it does not even perform better than the "old, outdated" almighty i7-4790K!
Amen! Plus, the i7-4790K has the additional advantage of being able to run the best Windows version ever: Windows 7!
The new generation (seventh generation) of i7s is coming soon! I think you better wait!
As a user of the best Windows version to date: Windows 7, I am appalled by Intel's decision (in cohorts with Microsoft) to do everything they can in order to prevent these new systems from supporting Windows 7! This in order to push us/aka force us, the loyal paying customers, into using their new, bloated, and hideously intrusive report-to-MicroSoft-everything-you-are-doing Windows 10! I'll stick to my i7-4790K system, thank you very much. And to those praising the "Oh, wonderful" i7-6700k (after spending over $300.00 for the CPU alone, I don't blame you), but once the next batch of i7s come out they will be crapping all over the "old, outdated" i7-6700K! (Intel must love you)
I am still backing my 6700k and I am getting another one to upgrade my I5
For PC builds this guy knows his stuff, and you can submit your builds to him. TechSource. FYI https://www.youtube.com/channel/UChIZGfcnjHI0DG4nweWEduw
I agree I have the 4790K and it's great for my build with a GTX 980, I will be getting a BenQ 1440 this week! Black Friday deals now!!!
I am very happy right now because I have one 4790K :D
Unless you only care about stock performances, overclocked version of both CPUs show that the 6700K remains kinda superior, but only kinda. https://browser.geekbench.com/v4/cpu/search?dir=desc&q=4790k&sort=multicore_score and https://browser.geekbench.com/v4/cpu/search?dir=desc&q=6700k&sort=multicore_score
Why ?
Not really.
How's this, an LGA1366 board is capable of using 48GB of ram, NOT the 24GB manufacturers tell you, again, DO YOUR RESEARCH!!!
where test results are inaccurate passes all kinds 6700k http://www.idealhediye.com - http://www.xboxturk.com
Mostly on sheets AMD>Intel/NVidia but actually Intel/NVidia>AMD.
The only problem with high price AMD products is that they're lacklustre. They just don't seem to be as good as other companies (Intel, NVidia). Just look at the R9 390, which was much better than the 970 on sheets, but guess what, 970 wins. NVidia's hairworks titles are also a reason why AMD isn't preferred that much. Whatever AMD does, it just doesn't win against NVidia on the mainstream market. Budget market is ruled by AMD. But most people who buy computers (or even laptops), have Intel and NVidia chips in them. Even those who don't build their budget PC (and choose to buy a Dell/HP etc.) have Intel. Nobody, literally nobody buys costly AMD products. The world said (not sure if this is true) that the R9 295X2 was much better than the Titan X/Z. Who bought that 295? 1 in 10 million PC builders, who have money to throw. And that R9 390 X2 which was a damn brick, complete sh*t. Who would like to destroy their mobo with a 9-pound-brick..... Performance was good as per reviews but seriously??? A freaking' brick?!
i just finished 6700k with r9 390x my first build 16gb ddr 4 600 watts i hope it works for me
Thanks, I was thinking of getting a Corsair H60, because it's cheap and nice. Now I can rest assured that I won't screw up my CPU with my cooler.
Nah, I'm gonna just buy it from Amazon.com it's still $50-100 cheaper. I'm now, just a bit confused between the GTX 1060 and the RX480 after I read that NVidia hijacks the drivers to make the older cards perform poorly forcing the user to buy a new card. I'm probably gonna upgrade in 2018 - 2020. Right now, the 1060 proves to be better than the 480 in a majority of games but as a GPU, 480 seems better. But, seeing everyone's trust in NVidia and sh*t-dependency on AMD, I think I'll go for the 1060. :P
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