Runs hot

A Review On: Intel Core i7-4790K Processor- BX80646I74790K

Intel Core i7-4790K Processor- BX80646I74790K

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Pros: Extremely fast

Cons: Runs hot

This is an extremely fast processor, however in my opinion, gamers stick to an i5. I previously had an i5 4690k at 3.5ghz and that was enough. I upgraded to this beast because it was part of Intel's holiday deal. After installing it the computer remained relatively the same speed for most basic tasks and for gaming. The real benefit for me is when I rendered the occasional video. However that came at the cost of a lot of heat. I used the stock cooler on both and the i5 idled at around 35c while the i7 idled at around 42c. Definitely need to upgrade the cooler with this thing or its not gonna be able to use its full potential. Maybe I got a lemon but with the stock cooler prime95 was hitting the 90's so i wont overclock till i buy a proper cooler.

TLDR:
Pro-
Haven't been able to hit 100% utilization on any game
Renders videos super fast
Cons-
Runs HOT
Price per performance- I5 4690k is better

5 Comments:

You should be able to get idle temps around 25-30c with a ~17-20c room temp by enabling the proper idle states. They're obviously disabled for you.

You shouldn't use prime on the stock cooler or when overclocking, either
sound a lot like a bad IHS/TIM interface. wonder what exactly Intel did do fix the "IHS Problem" in Haswell for Devils Canyon.

both the 4690k and 4790k are 88W TDW, and idle temps shouldn't be that different.
The i5 is for gamers, but if you produce any media related work. Then go with the hyper-threaded i7.
If cooled properly, the i7 4790k doesn't run hot at all. Mine idles in the low 20s (C) sometime even the high teens. Right now its idling at 19/21/21/19 (C) according to RealTemp. Under heavy load my 4790k hits the mid 40's (C). I'm using a Corsair H80i cooler.

I been doing this computer thing for twenty + years and this is one of the best and coolest idling procs I've ever had (not to mention fast as hell). I can't believe so many people think it runs hot. It's simply not true. It's all about cooling it properly and proper air flow management inside your case.
One thing about the cooler in the box, these are the same ones that ships with dual core Pentiums & i3's, the applied thermal solution needs to be removed with alcohol. Make sure all is clean & dry (CPU also if installed the original), then use a pea sized drop of quality thermal paste on the center of the CPU (MX-4 is my favorite) and lower the cooler straight & even. Once lined up, give a very slight wiggle, that spreads the thermal paste, finish installing the cooler & then one should see much lowered temps.

With only the cooler that shipped with the CPU, I can run the PC for 8-12 hours & still be running in the lower 30's, if I allow to idle, will drop to 28-29C. Only during AV or Malware scans does temps rises, and that's normally no higher than 40C during the scan.

This is a Cadillac of a CPU (some may say Corvette), that no matter the task, the i7-4790K is more than capable of the job, and if overheating, then one needs to reinstall or RMA the CPU for replacement. Some will see benefits of a 3rd party cooler, if say, a hardcore gamer, or running 2-3 virtual machines at once. Unlike the models that runs at 130W & above, modern Intel CPU's running at only 88W should not be running hot. If so, something is wrong, be it the install process, inadequate cooling for the CPU (including case fans in proper positions), or case too cramped for proper airflow.

Even wiring management plays a factor, if all in the way, will impede airflow & I've seen this a lot, sloppy PC building. It's also good to have a nice clean case, cans of compressed air for this purpose is low cost, and one should clean their PC no less than every 6 months, more if in a dusty environment. The PC doesn't need be in a cramped area, this can restrict airflow. All of these things & more adds up when it comes to reducing heat.

And finally, overclocking will, the majority of users will never need more than the 4.4Ghz of native Turbo Boost the 4790K offers, so consider the need before setting extreme performance levels. Many sees overclocking as an art, and while I can appreciate this, it has to be performed in the right environment, a MB that can handle it, and perhaps the most important component to one's system, a quality and more than adequate PSU to meet the needs of the total system. It's better to have a 850W PSU & only need 650W than the other way around, the system will only use what it needs.

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