Overclocking i5 4690k for 24/7 usage

Eximo

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Voltage will vary by chip, but I have seen as low as 1.2 to hit 4.3Ghz. My particularly poor i7-4770k requires about 1.3volts to do 4.3Ghz.

1.3 volts is probably a little too much for a hyper evo 212 to handle, but it should still keep it below 80C or so. At 1.2V I would expect highs around 65C under a full load.

Looks like most people hit around 4.5Ghz with the 4690k
 

Lawk Duski

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Dec 19, 2014
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EVO 212 is an option. i can choose corsair liquid cooling. which cooler do you suggest me to buy then for 4690k? over clocked to 4.4 ghz. please keep in mind that my case has no place for big radiators like corsair H100i
it has place of 120mm fans
 

nikos_gevre

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Jan 7, 2014
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well i will oc my i5-4690k like you (maybe less than you, about 4gHz) and my case can't fit 240mm radiator, too. so i have been searching a lot these days and i have decided that for my budget (60-70euros) in my country the best choices for AIO are the thermaltake 3.0 performer, corsair h60 and coolermaster seidon 120v. so i would suggest these coolers to you too. have in mind that i specifically want AIO and not air cooling so i haven't done any search on good air coolers for this budget. some say that you can find better cooling solutions with this budget if you decide to go air cooling. i made some posts in forums about these 3 coolers i told you and it seems that the seidon 120v has the best price/performance ratio from these 3 choices but the h60 has the best quality (and in my opinion the best lookings).
 

nikos_gevre

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it seems strange to me how someone could manage to oc a 4690k to 4.4-4.6 gHz with an air cooler like the 212evo. 212evo is really good cooler but not that great to perform similar to 80-100$ tier air coolers. it's just logical that the evo is for minor oc with normal temps and noctua nh-d14 or similar air coolers are for extreme oc (lower rpm->lower noise for same performance and if you dont care about noise a lot you can get super clock speeds with normal temps). i can't say the same for water coolers though. i have seen people oc systems very easy and with logical temps with lower cost AIO. as i see in reviews the 60$ tier doesn't have that much difference in performance than the 100-120$ tier. the h60 performs only 5-7 degrees higher in temps than the h100 in some tests i saw online. that's why i want an AIO in my system. the only big difference in AIOs are the radiators. it's just logical that more or bigger radiators perform better but as i said before not that better to justify the big difference in money (double the money for not double the perormance). costume water cooling solutions are better as i see in tests but that's a different story. i think that if you are willing to pay close to 100$ for AIO just add another 70-90 dollars and do costume water cooler or save some money and buy a 60$ AIO. after a lot of search i came down to the conclusion that 60-70$ AIO is the best choice for normal use of computer(and ofc normal-not extraordinary overclocks). enthusiasts are enthusiasts and will spend extra money for nothing...

anyway that's a bit off from the op question. in the end i recommend AIO and specifically one of the 3 i mentioned before. with either of these 3 coolers you could get easy to 4.4gHz in normal temps.
 

Eximo

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All in ones are decent. The smaller ones perform on par with the mid-range air coolers. The h80i and h100i are about the minimum for decent performance. Makes for a nice look. (I have one for space issues on a previous build, and I was like, why not?)

The Evo is a popular cooler because it does a decent job with such a low price. Now I wouldn't say it makes a good choice on early Haswell chips like mine, as many of them have serious thermal issues above 1.2 volts. The Haswell Refresh chips with their improved TIM and better binning just do better at reaching higher clocks without a lot of voltage. Coupled with the better thermal dissipation and they overclock without a large increase in temperature.

Certainly diminishing returns to keep in mind as well. You might get a 300W cooler like the Noctua D15 but an overclocked Haswell can really only pull about 150W before melting down. Hyper Evo is certainly large enough to handle that. After that you have to switch to real custom water cooling with high pump speeds to keep raising the voltage.