Can a laptop cool Core Ultra 9 386H, and will it throttle under sustained load?

  The 386H is a 16-core performance flagship; a gaming burst normally heats it less than sustained all-core compiling or rendering with the GPU active. In plugged-in performance mode, run 15-minute CPU-only and combined loads in HWiNFO, recording CPU package power, GPU TGP, and clocks from minutes 5 to 10: any later power >~10% below stable or falling clocks means shared power/cooling limits. High-power parts like this fail as "runs fast but can't sustain" — judge machines by sustained-load behavior and fan strategy.