CPUBoss Review Our evaluation of 4790K vs 6850K 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 6850K 

CPUBoss recommends the Intel 6850K  based on its performance.

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Front view of Intel 6850K

Intel 6850K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher turbo clock speed 4.4 GHz vs 3.8 GHz More than 15% higher turbo clock speed
Higher clock speed 4 GHz vs 3.6 GHz More than 10% higher clock speed
Much lower typical power consumption 71.5W vs 113.75W More than 35% lower typical power consumption
Much better performance per watt 11.42 pt/W vs 2.43 pt/W Around 4.8x better performance per watt
Better PassMark (Single core) score 2,530 vs 2,166 More than 15% better PassMark (Single core) score
Much lower annual home energy cost 21.2 $/year vs 33.73 $/year More than 35% lower annual home energy cost
Much lower annual commercial energy cost 77.09 $/year vs 122.64 $/year More than 35% lower annual commercial energy cost
Better overclocked clock speed (Air) 4.63 GHz vs 4.43 GHz Around 5% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.8 GHz vs 4.31 GHz More than 10% better overclocked clock speed (Water)
Front view of Intel 6850K

Reasons to consider the
Intel 6850K

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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 PassMark score 14,371 vs 11,194 Around 30% better PassMark score
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Newer Apr, 2016 vs Apr, 2014 Release date over 2 years later
Supports more RAM 131,072 MB vs 32,768 MB Supports 4x more RAM

Benchmarks Real world tests of Core i7 4790K vs 6850K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 4790K

GeekBench 3 (Single core) Data courtesy Primate Labs


GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4790K
5,140,000 MB/s
4,310 MB/s

Cinebench R10 32-Bit

Core i7 4790K

Cinebench R10 32-Bit (Single Core)


PassMark Data courtesy Passmark

Core i7 4790K

PassMark (Single Core)


Specifications Full list of technical specs


Core i7 4790K  vs
Clock speed 4 GHz 3.6 GHz
Turbo clock speed 4.4 GHz 3.8 GHz
Cores Quad core Hexa core
Is unlocked Yes Yes


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

power consumption

TDP 88W 140W
Annual home energy cost 21.2 $/year 33.73 $/year
Annual commercial energy cost 77.09 $/year 122.64 $/year
Performance per watt 11.42 pt/W 2.43 pt/W
Typical power consumption 71.5W 113.75W


Architecture DMI 2.0 FSB
Number of links 0 1


Core i7 4790K  vs
Architecture x86-64 x86-64
Threads 8 12
Manufacture process 22 nm 14 nm
Max CPUs 1 1


Overclocked clock speed 4.63 GHz 4.43 GHz
Overclocked clock speed (Water) 4.8 GHz 4.31 GHz
Overclocked clock speed (Air) 4.63 GHz 4.43 GHz

integrated graphics

Label Intel® HD Graphics 4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,250 MHz N/A

memory controller

Memory controller Built-in Built-in
Channels Dual Channel Quad Channel
Supports ECC No No
Maximum memory size 32,768 MB 131,072 MB
Intel Core i7 4790K
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Intel 6850K
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Showing 12 comments.
Yes i did consider kaybee lake ir whatever it's called. I am concerned going that route mainly because i would have to update my bios on my motherboard and then prey it works . I differences aren't really that great plus I'm running a ITX rig so it really wouldn't benefit me. A big plus is the I7 6700k should drop a bit in price.
I like linus but too goofy for me. I watch all of them except for joker productions. I could barely tolerate him but after Hillaru lost he couldn't stop crying about it. My main reviews i watch is Jays2cents and Paul's hardware
lol. My goto on youtube for enthusiast friendly material is linus but I'll check out overclkd and see what he has to say.
I do agree with your point. I don't think the reviewers are getting that point across to new enthusiasts like myself. The only exception i have seen so far I s "Overclkd" YouTube channel. He went over and beyond
I didn't say it was either. I just said that those running newer chips might have the experience of both and concluded it wasn't worth the purchase over what they had. Which is why they were recommending not to get a newer chip. And like you I also have older chips.
I didn't say it was bad to run a 4790k. I think you interpreted something else. I have a A10 7860k in one of my rigs
Have you considered that they may be coming from a place of experience, have upgraded and not seeing any sizable difference? Then cautioning others who might be on the fence. You guys with all your new fangled cpus. I'm still sporting a 4790k and a 1060 in my play rig. It runs everything flawlessly. Yes, there's a lot better but I'd be hard pressed to make a judgement call. Got a dual x5482 too for work and don't notice a difference in render times between that and the play rig.
Another thing, why do all these reviewers always make comments like you won't see any real performance gain out of hex cores but all their rigs are sportn 6850ks? Practive what you preach
Hex cores been out for a minute now and I stil don't see any software that takes advantage of em. Save your money
Your friend should the 970s and buy a 1080. Its already paid for
just test it man.in game,if cpu usage higher than %90~ , needs to be o.c.And just check that fans are enough
What u guys think my friend is running 3 gtx 970sc with a i7 4770k with a z97-ws quad strength graphic power 4 way motherboard some pc people say he should over clock the cpu and the graphics card because the graphics card might bottle neck the cpu r they right
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