I have a LC Power 650W PSU that I bought about 4 to 5 months ago when my previous one failed unexpectedly. I never intended to build a new PC, but the market changes have pushed me in that direction. I'm planning to use it with a 5070Ti that will be undervolted, but I'm unsure if the 650W is sufficient. While I know the recommended minimum for a 5070Ti is 750W, I'd like to know if I can get away with using my new PSU to save some money. Just for reference, it's an ATX 2.1 power supply.
1 Answer
It depends on a few factors, like your CPU and RAM setup. Can you share what you're using? If you're not overclocking and your system is fairly standard, that 650W should suffice.

I have a Ryzen 7800x3D, one M.2 SSD, one SATA SSD, one HDD, and 32GB of RAM (2 sticks at 6000MHz). No overclocking.