This processor is a monster, I'm not going back on the technical terms that are described in the product description. That said we must take into account that the I7 4790k is sold with a basic Intel cooler that does not cool well enough to allow overclocking ... I conducted several "Stress Tests", knowing that the CPU is overclocked core 4,4Ghz (Turbo Boost) with original cooler, it reaches 86-87 ° after 10 minutes of intensive use. (This is not advisable) So I dropped to 4Ghz (which is very reasonable), revived a stress test and there it no longer exceeds 70 ° ...
To summarize, remember to remove the basic overclocking if you keep the Intel CPU cooler to avoid unnecessary overheating.