RE: Offsets, there will be different options available in Z590 BIOSs (not sure if they will trickle down to Z490...I'd assume so).
You can do that, set a hard cap... just make PL1/PL2 156W. The CPU will throttle (power limit) on most multi-core/thread AVX2 and up loads I would imagine and lower clocks to fit within the envelope. I'd imagine the 10900K would also follow this behavior.
I've heard of one Z590 motherboard that runs the CPU at Intel specs (turbo duration/wattage). When it runs a stress test it settles to 4 Ghz and just power limit throttles for the duration. But that said, these are early BIOSs which I'd imagine most would have updates between now and release date/shortly after.
You can do that, set a hard cap... just make PL1/PL2 156W. The CPU will throttle (power limit) on most multi-core/thread AVX2 and up loads I would imagine and lower clocks to fit within the envelope. I'd imagine the 10900K would also follow this behavior.
I've heard of one Z590 motherboard that runs the CPU at Intel specs (turbo duration/wattage). When it runs a stress test it settles to 4 Ghz and just power limit throttles for the duration. But that said, these are early BIOSs which I'd imagine most would have updates between now and release date/shortly after.