New Ryzen CPUs behave extremely interestingly when you manually apply TDP limits. As I mentioned in a sibling post in this thread, my 7950X is TDP limited to 105 watts (from the 170 watts factory default), and it loses around 8%-10% performance under perfectly multithreaded loads (and nothing if only e.g. half the cores or less are utilised). It is also possible to limit it to 65 watts, at which you lose around 20% or so but that's still very-very fast. At 105 watts it's around as fast as an M1 Ultra, which draws ~ 60 watts if all cores are used. Significant difference, but not something that's a very big problem in workstations. The 7950X is also competitive when limited to 65 watts -- it's barely underperforms the M1 Ultra.