An 8-core cpu made at 7nm at Ryzen 7 2700 clocks without HT will have a TDP of just 30-40W. A GPU made for PS5 (Navi arch) will have a 100-120TDP and have at least Vega 56 performance (40-50% over the one existing in PS4pro). And this combo will be easily capable of 60FPS at 4K with a few tweaks in game settings.