Zen4's latency is god awful. 12900K with properly tuned DDR5 on a good mobo should be mid to upper 40s as far as latency goes with a matured IMC. 60ns plus is absolutely shit for 1% and .1% lows
Why is power of a concern for people? Do you have a 500W PSU? A 12900k would rape two fold a 2990WX. Hell, a efficient(to you) 5950X also rapes a 2990WX. A turd? Alder Lake is a great CPU.
Anyways, I still don't understand this notion of power consumption being a big deal to some people.
I disable PBO. Its trash and a waste of time. Only good thing I got out of PBO was single thread score of 1659. Either Manual All core or CCX OC is your best bet.