Yes, a single CPU power connector should suffice.
Yes, a single CPU power connector should suffice.
Your setup looks solid. The Ryzen 7 7800X3D pairs well with the MSI B650 Tomahawk Wi-Fi and 32GB of 6000 MHz DDR5 RAM. You likely won’t need an additional power supply unless your current PSU can handle the load, but a single connector should suffice if everything fits within the PSU’s capacity.
Absolutely, it's enough. One 8-pin connector can deliver over 400W if the power supply can handle it, and the 7800X3D stays under 100W at all times. Even the 7950X won't exceed 200W consistently without getting hot, while most boards have a second 8-pin primarily for appearance rather than real performance.