Intel Core i7 4790K 

Released April, 2014
  • 4 GHz
  • Quad core
  • Unlocked
7.6 Out of 10

Explore 8 desktops with the Intel Core i7 4790K

CPUBoss Review Our evaluation of the Intel Core i7 4790K among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

Core i7 4790K
10.0
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core i7 4790K
10.0
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core i7 4790K
1.7
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core i7 4790K
3.6
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core i7 4790K
8.7
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Core i7 4790K
5.4
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

7.6

CPUBoss Score

Combination of all six facets

Core i7 4790K
7.6

Benchmarks Real world tests of the Intel Core i7 4790K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4790K
16.1 mHash/s
Core i5 4690K
13.73 mHash/s
Core i7 4770K
16.33 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4790K
1.79 fps
Core i7 4770K
1.97 fps
Core i5 4690K
1.74 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i7 4790K
3,570

Sky Diver Data courtesy FutureMark

Core i7 4790K
3,880

Cloud Gate Data courtesy FutureMark

Core i7 4790K
8,470

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 4790K
15,490
Core i5 4690K
11,924
Core i7 4770K
14,184

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 4790K
4,004

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4790K
5,140,000 MB/s
Core i7 4770K
4,810,000 MB/s
Core i5 4690K
5,060,000 MB/s

Reviews Word on the street for the Intel Core i7 4790K

Specifications Full list of technical specs

summary

Clock speed 4 GHz
Turbo clock speed 4.4 GHz
Cores Quad core
Is unlocked Yes

features

Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. EM64T
  3. SSE4.2
  4. AVX 2.0
  5. SSE4.1
  6. AVX
  7. SSE
  8. SSE4
  9. F16C
  10. FMA3
  11. AES
  12. SSE3
  13. SSE2
Supports dynamic frequency scaling Yes

power consumption

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

bus

Architecture DMI 2.0
Transfer rate 5,000 MT/s

details

Architecture x86-64
Threads 8 threads
L2 cache 1 MB
L2 cache per core 0.25 MB/core
L3 cache 8 MB
L3 cache per core 2 MB/core
Manufacture process 22 nm
Max CPUs 1
Operating temperature Unknown - 74.04°C

overclocking

Overclocked clock speed 4.63 GHz
Overclocked clock speed (Water) 4.8 GHz
PassMark (Overclocked) 6,925.3
Overclocked clock speed (Air) 4.63 GHz

integrated graphics

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

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1600
  2. DDR3L-1600
  3. DDR3-1333
Channels Dual Channel
Supports ECC No
Maximum bandwidth 25,600 MB/s
Maximum memory size 32,768 MB
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Comments

Showing 17 comments.
Yes my friend.
Does this i7-4970K is coming with a fan?
I'm also glad that consumers chooses AMD (though personally am not a 'fanboy' of the brand. Rather as someone mentioned above, if it were only Intel, then we'd be paying $750 or more for these high powered CPU's. Also, I appreciate the fact that not everyone can afford to spend $350 for a single component. For some, that's the budget for their entire build......and likely recycling some components to meet that budget. Have been there myself. For the money, the i7-4790K is a dang great CPU, though am now questioning one issue......instead of fluxless solder, Intel used thermal paste in their 3rd & 4th gen CPU's underneath the cap. Some says that with overclocking or high Turbo Boost usage, that the (inferior) paste will last just long enough for the warranty to expire, and will likely die. There are published fixes that aren't risk free (75% success rate), and one needs the tools to do the job. What I didn't see is what the thermal paste was replaced with. Hopefully with fluxless solder, just as the earlier models. Had I known this upfront, would never had dropped $327 for the 4790K. Intel makes a lot of cash, and didn't have to resort to these tactics, consumers would had paid $25 more for the right way of doing things. Many expects a CPU of this price to last at least 10 years. Come 2 or 3 years, these will be all over eBay used for less than $100. Cat
Stock Gaming Benchmarks vs i7 6700K https://www.youtube.com/watch?v=VDo-j00vUtw
In that case, I was referring to the first reason.
That's not really a good reason to buy anything. I'm not going to get an inferior product or one that provides less value for the money merely to keep the business afloat.
Most any 1150 MB will do, depends on if you're running a Full ATX or mATX MB. All of mine are mATX, so have to go with the flow on the PC's I have. ASRock produces some decent MB's, just upgraded a PC that was given to me with their 970M Pro3 series, then installed a FX-6300 CPU. The WEI was already 7.2, now it's 7.5. Am going to do a custom build with soon, will likely go with an ASRock Z97 MB to have support for PCIe SSD's, and move the i7-4790K now running in the Dell into it, and find a unlocked i5 for that PC. Don't know what I'm going to do with this i7-4770, shame for a $309 CPU (as priced on Newegg today) to rot. I don't like the vPro feature on it, which is a backdoor for Intel, plus the OEM's to ship unwanted firmware & one's Firewall won't be able to stop it, because of the backdoor that vPro provides. Cat
The i7-4790K is a Sweet CPU for those who wants to upgrade their 1150 OEM models to the best CPU possible. Most systems, even budget models, should run it fine. As to the well blown out of line 'overheating' issue, the fix to that is a tube of MX-4, sometimes found for as little as $5.99 on Newegg on promo, which I keep on hand. Arctic doesn't guarantee the solution for 8 years for no reason. The only catch when using the stock cooler, is snipping from the bottom, the 4 plastic tabs, and replacing these with 4 optical drive retention screws (the ones that sticks out) before installing, which threads are an exact fit in most 1150 MB's. Make sure the fan spins, just a wire tucked the wrong way can prevent this. Now, using alcohol, remove the 3 streaks of pre-applied thermal paste from the cooler (which by chance is the same used for the boxed i3's), dry well, and place a pea sized drop of the MX-4 on the CPU. Be sure to take 'before & after' pics to make sure it's installed right. Now just gently lift down the cooler, place a little pressure on the center, enough to hold it, and tighten the screws a third way down in a criss cross pattern & make 3-4 rounds of this, don't torque like it's lug nuts on a car, just sung it good, and you're ready. Some OEM's such as with the Dell XPS 8700, will have a couple of levels of 'performance' modes in the BIOS, but for the break in, I suggest to not do so for a couple of days, and take it one upgrade at a time. You're done, and as you'll see below, it doesn't run 'hot'. When did 27C become HOT? http://speccy.piriform.com/results/DLTOWLpXQ6STRJzIcZzyRpd This is because I'm using premium paste, rather than the pre-applied stuff that's also used on boxed Pentium & i3 CPU's. Good Luck with the upgrade, and make the move before the last batches hits $400 or higher :-) Cat
always welcome bro.
yes! that is indeed the one i got. thankyou.
asus maximus 7 hero or later, maximus 8 series also and try out sabertooth and tuf series.
what would be the best motherboard to pair with this? price not important. well...within reason.
AMD volcano core temperature APU which is totally waste after buying graphic's card.
it can be helping you.. http://www.myleadmap.com/446958
You also see http://www.installwordpress.co/ from this.
I can not match any information between http://www.xiontech.net/intel-core-i7-4790k-review/ this post. Because they told that half a gigahertz speed bump is nothing to sniff but my question is 'is it ture?'
many ppl are dumb fucking idiots... intel not ONLY has much lower wattage consumption but also has hyper threading technology compared to useless AMD '32 nm volcano temperature CPU
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