you do realise were talking about the 9950x3d the 16 core not hte 9800/9850x3d 8 core cpu here?
these are 16 cores
a quick google suggests north of 200w under max loaded conditions which seems about right tdp is quoted as 170w according to the published specs
That’s full system load ie hitting RAM, drives and probably with some overclocking, but a modest heat sink and fan or 120.1 cooler is more than enough to keep any AM5 chip happy. They aren’t hot running chips and water cooling isn’t required at all.