Jayzor47 :
When I play heavy games I get max temp of 80 degrees celsius. It's dangerous in the long run right?
Yeah, those 4790/4790K chips do run hot! However, I really don't think that's remotely dangerous. Others will have different perspectives on this, so take my musings with a grain of salt.
Most CPUs in Intel ultrabook/portable devices, while only 2 cores and lower clocks, are essentially the same fabrication process and CPU design as your 4790. Those ultrabooks they run in do not have sufficient cooling to handle a sustained load. So, every time they run @ 100% CPU for any length of time, they quickly hit their max temp (~90 degrees) and have to downclock themselves to keep from melting. They will sit their at their temp limit for hours, with the CPU clocking itself up and down constantly to keep temps at (but not above) the limit. That's why if you run a benchmark on one of those devices while it's sitting in a freezer it'll post a significantly higher result.
The CPU in my Surface Pro3 spikes to 90 degrees within about 30-60 seconds of a 100% CPU load. I expect it to last for years and years without problems. 80 degrees for your 4790 should be perfectly safe too.
Might it last longer @ 65 degrees... probably. I just don't think it will be a relevant CPU anymore by the time it actually dies.
Make sure you keep the case and especially the CPU cooler free of dust and you should get years out of that CPU.
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