CPU is already overclocked. I honestly need a new PSU now, which is why I am in the market for one. I have a very old 650 watt Antec unit now. I plan on buying a 1000 watt unit and I know for a fact that the RTX 3070 will not need anymore than that. NVIDIA also confirmed that they are shipping the adapters for the new power connector, so I am set there as well.