I would be pretty amazed if this 6ghz "stock" clock can be achieved with just air cooling.
The NH-D15's max cooling ability is slightly beneath the 12700k's max thermal output. So if you're running a 12700k, you can get away with it, because the liklihood that you're running the 12700k at max thermal output for long periods of time are pretty slim, and if you're running under max, then you're covered.
I don't remember TDP numbers off the top of my head, but if the 13700 is a significantly higher thermal output, and its going to be in the same case as the next gen video cards with their higher output? That doesn't seem feasible for the NH-D15 anymore
I just tried the test again, and with the max heat test, I was in the 95-100 C range and it was throttling to 4.3 Ghz.
Now I'm wondering exactly what I did. It was years ago when I did this, right after I got my CPU.
I did find an old message on Discord though where I talked about it:
> Ran the CPU torture tests in Prime95 on my new i9 with this Cooler Master Hyper 212 air cooler. When doing the Small FFTs test which generates maximum heat, yeah, it does suffer some thermal throttling. It'll run for about 30 seconds at full speed, then it'll enter a pattern where it throttles down to 3.6 Ghz for about 1/2 second, then jumps back up to 4.5 Ghz for 2 seconds, then throttles again. For the other two tests, it happily just hums without throttling at about 60 C. But even when suffering from thermal throttling, it's still faster than my old i7-3770k.
Thing is, right now, if I do the "Large FFTs" test, it's hitting 90C, whereas before it was only 60C.
I've had this CPU now for 4 years, and I have 3 cats and my computer is only a few inches off the floor. I wonder if I just need to dust out the cooler.
Maybe Intel will include a beefier stock cooler in the box?
But really doesn't make sense including a stock cooler for the i9 lineup though, since that monster of a CPU will defeat probably every mid-level air cooler and would require a beefy Noctua or something similar...