That isn't good, that makes it a 360W power supply by normal standards (12V output). This is not adequate for running a 3060Ti which is itself a 200W (12V) card, plus your CPU and other hardware is going to be pushing it close to 300W, and since it is not a new power supply, it probably isn't capable of outputting its stated rating any longer.
That said, since the GPU is likely to no be fully taxed due to the CPU limitations, it might actually work. However, you really should invest in a new CPU/Motherboard/RAM to utilize such a card.