This is, without a doubt, my new favorite air cooler
It is, for sure, one of the best. I don't like the overly "Borg-ey" appearance, but it's not bad looking per se. That extra fan config though... That looks ugly XD
Now, allow me to say this test only shows the NH-D15 is just a beast. It was when it launched a lot of years ago and it is still a beast. This only makes me want Noctua to release its successor already!
And thanks for the testing, Albert! Quite a lot of good information in your charts, specially the "max watts cooled" one. I believe you've found a very good way of reporting a universal (somewhat) dissipation potential for all coolers. Paste and case come into play as well, but you can account for those as asterisks, just like any other measurement (and you do, mind you). I wish you could consolidate more coolers into that chart, but using a 13900KS with no restrictions.
Regards.