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Intel Core i7 6700K

Front view of Intel Core i7 6700K
Front view of Intel Core i7 4790K

Intel Core i7 4790K

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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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Much better 3DMark06 CPU score 80.5 vs 79 Almost the same
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better geekbench 3 Multi-Core score 17,583 vs 15,490 Around 15% better geekbench 3 Multi-Core 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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Much better performance per dollar 3.69 pt/$ vs 0.91 pt/$ More than 4x better performance per dollar
Much better performance per watt 11.42 pt/W vs 3.49 pt/W More than 3.2x better performance per watt
Slightly higher turbo clock speed 4.4 GHz vs 4.2 GHz Around 5% higher turbo clock speed
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 PassMark (Single core) score 2,530 vs 2,349 Around 10% better PassMark (Single core) score

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

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

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

CompuBench 1.5 (Face detection)

Core i7 6700K
26.72 mPixels/s
Core i7 4790K
18.33 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 6700K
1.82 fps
Core i7 4790K
1.79 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 6700K
17,583
Core i7 4790K
15,490

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 6700K
4,510
Core i7 4790K
4,004

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 6700K
6,010 MB/s
Core i7 4790K
5,140,000 MB/s

PassMark Data courtesy Passmark

Core i7 6700K
11,109
Core i7 4790K
11,194

PassMark (Single Core)

Core i7 6700K
2,349
Core i7 4790K
2,530

Specifications Full list of technical specs

summary

 Core i7 6700K  vs
4790K 
Clock speed 4 GHz 4 GHz
Turbo clock speed 4.2 GHz 4.4 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
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
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 3.49 pt/W 11.42 pt/W
Typical power consumption 73.94W 71.5W

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
4790K 
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

overclocking
Overclocked clock speed 4.61 GHz 4.63 GHz
Overclocked clock speed (Water) 4.77 GHz 4.8 GHz
Overclocked clock speed (Air) 4.61 GHz 4.63 GHz

integrated graphics
GPU GPU GPU
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
DDR3L-1600
DDR3-1600
DDR3-1333
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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Comments

Showing 25 comments.
zabijciesiekuwyodtejstrony (12:38 AM, January 14, 2022)
tu jest jakiś benchmark? kuwa co za debil zrobił tą porywnywarkę z której kuwa nic nei wynika? co za debile (włącznie ze mną) komentują tą strone? po hui porównywać hujoherce. kuwa JEBAĆ TWÓRCÓW PRĄDEM
Qasim (10:42 AM, June 17, 2021)
My question is the core to quad q9650 is have unlocked multiplier?
Qasim (10:41 AM, June 17, 2021)
Hi
Pinreg.ru (10:52 AM, February 3, 2021)
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Greg Steele (09:58 AM, November 10, 2017)
How can you compare a LGA 1150 cpu to a LGA 1151 cpu? At least say that they don't fit the same mobo!
Garnett D. (12:09 AM, August 6, 2017)
rx480 is a great choice
Gabor (06:09 PM, August 1, 2017)
4790k is more expensive (~$366) here and now (2017.08), than the 6700k (~$316) It's very interesting for me. By the way I have a 4790k :)
Rob Muckian (01:44 AM, July 18, 2017)
no sli tho, might as well buy a 980sc
Prad Bitt (07:22 AM, June 26, 2017)
Meh, GTX 1060 screws both up 😂😂
Rob Muckian (09:42 PM, June 25, 2017)
Yes, TN panels are only good if ur sitting in front of them, an IPS monitor u can view at all angles and can still see a clear picture
Rob Muckian (09:41 PM, June 25, 2017)
The R9 390 is better than a 970 hands down, even a R9 290 is better than a 970
WAQAR VINE (03:02 AM, June 15, 2017)
just updating i am so happy with my built its been 9 months
Chris R Schneider (09:09 AM, March 29, 2017)
for the money the rx 480 is great. works great with 4k and is 200 bucks. i have no issues. drivers are getting better. and getting 70fps at 4k on games like gta5 is not bad.
Chris R Schneider (09:08 AM, March 29, 2017)
2tbs ssds on amazon are 450 euros
Chris R Schneider (09:07 AM, March 29, 2017)
the newer ssd have memory that the myth of worn out reads and writes is pointless now. it would take years of constant writing. only thing about ssds is there not much warning when they are gonna die. but this was with the samsung 830s and older.
Chris R Schneider (09:05 AM, March 29, 2017)
this makes no sense at all. and this site REALLY needs to update their cpus. i have both chips. and the 4970k is more money than the 6700k still? they seem basically the same. but still ryzen is here. wtf
Oags (09:09 AM, January 27, 2017)
Complete Bull... My machine: Intel core i7 6700K (Stock Settings) Not Over Clocked. Reference Machine: Core i7 4790K As you can plainly see the 6700K beats the 4790K in single and multi thread proformance. https://uploads.disquscdn.com/images/d1d342fa6f51a1219c73e19ceffcd81f74c8db2fcb6285a8afe408fcbb6ca6d6.jpg
Dano (12:09 AM, January 7, 2017)
4790K will go prfct with that ddr3. Not sure but the 6700K is ddr4
Jay Lynch (03:26 AM, January 4, 2017)
If the 7700k is indeed @ $350 as its marked on Amazon I will get one
Jay Lynch (03:16 AM, January 4, 2017)
Just watched Jaystwocents I7 7700k first build of the year. 5 GHZ OC @ 1.32 V. Yeah Im gonna have to check that out.
Manos Liakos (12:36 AM, January 4, 2017)
Lol, re-read my post. What you wrote is completely irrelevant to what I posted. I didn't take a side between 6700k and 4790k, I only mentioned that some details on the 6700k are wrong on the cpuboss site. They say that 6700k has a FSB, while it has a DMI 3 bus. But, just because you mentioned it, I'm sorry you had to "suppose" I "spent more than 300$", 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€ :)
Anthony Shinn (06:43 PM, January 3, 2017)
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!
Anthony Shinn (06:38 PM, January 3, 2017)
Amen! Plus, the i7-4790K has the additional advantage of being able to run the best Windows version ever: Windows 7!
Anthony Shinn (06:37 PM, January 3, 2017)
The new generation (seventh generation) of i7s is coming soon! I think you better wait!
Anthony Shinn (06:35 PM, January 3, 2017)
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)
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