@Evan - i don't think I would use the Noctua above 85W TDP CPUs.
They aren't really meant for high air flow applications.
I'd be looking at their purpose built Heatsink/Fan combos (which usually mean 3U+).
I have no benchmark or TDP info to link to though
Noctua doesn't have TDP guidelines for just fans - or at least this one.
Having said that, I run them on my E5-2620v3's (85W TDP), but my CPU load
stays fairly low unless i run benchmark programs.
The power supply (Supermicro low flow exhaust) and the Noctua are the only fans in my "2u" chassis.
No issues and I have not seen my RPMs above 2000 during the hottest months (SEUS heat/humidity).
Ambient temps, other components inside the case/chassis all play a part of course.