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!

Differences What are the advantages of each

Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

Report a correction
Much better 3DMark06 CPU score 79 vs 67.7 More than 15% better 3DMark06 CPU score
Much better performance per dollar 3.69 pt/$ vs 0.89 pt/$ Around 4.2x better performance per dollar
Higher clock speed 4 GHz vs 3.5 GHz Around 15% higher clock speed
Higher turbo clock speed 4.4 GHz vs 3.9 GHz Around 15% higher turbo clock speed
Much better performance per watt 11.42 pt/W vs 2.45 pt/W Around 4.8x better performance per watt
Significantly better CompuBench 1.5 ocean surface simulation score 233.07 fps vs 173.8 fps Around 35% better CompuBench 1.5 ocean surface simulation score
Better turbo clock speed 1,250 MHz vs 1,150 MHz Around 10% better turbo clock speed
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 11,194 vs 8,012 Around 40% better PassMark score
Better PassMark (Single core) score 2,530 vs 2,148 Around 20% better PassMark (Single core) 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
Higher Maximum operating temperature 74.04 °C vs 64 °C More than 15% higher Maximum operating temperature
Better overclocked clock speed (Water) 4.8 GHz vs 4.57 GHz More than 5% better overclocked clock speed (Water)
Front view of Intel Core i5 6600K

Reasons to consider the
Intel Core i5 6600K

Report a correction
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jul, 2015 vs Apr, 2014 Release date over 1 years later

Benchmarks Real world tests of Core i7 4790K vs i5 6600K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4790K
16.1 mHash/s
Core i5 6600K
35.25 mHash/s

CompuBench 1.5 (Face detection)

Core i7 4790K
18.33 mPixels/s
Core i5 6600K
28.75 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4790K
1.79 fps
Core i5 6600K
1.91 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 4790K
5,140,000 MB/s
Core i5 6600K
209.7 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Core i7 4790K  vs
i5 6600K 
Clock speed 4 GHz 3.5 GHz
Turbo clock speed 4.4 GHz 3.9 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 88W 91W
Annual home energy cost 21.2 $/year 21.92 $/year
Annual commercial energy cost 77.09 $/year 79.72 $/year
Performance per watt 11.42 pt/W 2.45 pt/W
Typical power consumption 71.5W 73.94W


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


Core i7 4790K  vs
i5 6600K 
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 22 nm 14 nm
Max CPUs 1 1
Operating temperature Unknown - 74.04°C Unknown - 64°C


Overclocked clock speed 4.63 GHz 4.54 GHz
Overclocked clock speed (Water) 4.8 GHz 4.57 GHz
Overclocked clock speed (Air) 4.63 GHz 4.54 GHz

integrated graphics

Label Intel® HD Graphics 4600 Intel® HD Graphics 530
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,250 MHz 1,150 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 32,768 MB 65,536 MB
Intel Core i7 4790K
Report a correction
Intel Core i5 6600K
Report a correction


Showing 13 comments.
The core performance is far better with the i7 and will be better for editing videos and rendering, but the gaming performance is similar across Kaby lake, Skylake, and Devil's Canyon counterparts. I would personally buy the i7 due to the core performance.
Esqueci de dizer que o meu i5 é Slakware travado sem Overclock
Amigo eu comprei o i5 supriu minhas necessidades. Se o preço baixar eu troco pelo i7 6700.
If you look to compare not just in speed performance but in real chip vs chip embedded hardcore features the i7 4790 still wins for the intel security restriction and software manipulation limitation and it's design custom capabilities such as high thread. Just saying.
Acho que o i7 já que eu não vou apenas jogar.
Estou na mesma dúvida. Aqui no Brasil o preço praticamente dobrou dos PCS e Hardware. Então tem que pesquisar muito para não jogar dinheiro fora, visto que a crise financeira no país está alta. Qual seria melhor comprar então?
Yeah I was starting to lean more towards the i7 simply because of the hyper threading.
Go with the 4790k, it'll be much better, for like, everything.
I can get the i5-6600K for $249.99 but I can also get the i7-4790K for the same price. Should I go with Devil's Canyon or should I go with Skylake? I'm going to be upgrading from an 8320E so either way it's going to be a huge upgrade for me.
The i5 can over clock highier than what the i7 can. That is the advantage of upgrading.
well it's still i5 vs i7. 6700K barely does anything against 4790K. Even the 950 is close enough to 6700K that people don't want to upgrade. So of course Devil's Canyon i7 will beat a next gen i5
seems like i5-6600k doesnt do a shit compared to i7 while its useing 14 nm lol
I7 winner
comments powered by Disqus