Should I let my PC mine overnight?

The determining factor is how long you leave your card mining—but even going 24/7 for a few years shouldn’t affect card performance .

The answer isn’t so simple. Mining harms your GPU in the sense that one of its by-products is producing excess heat. If you run your mining setup 24/7 at a high temperature – above 80 oC or 90 oC – the GPU could sustain damage that will severely affect its lifespan .1 Mar 2022

, hobbyist cryptocurrency miner since around 2017. The underlying rig lasts maybe upward 8–13 years — depending mostly on how technology progresses and makes certain things obsolete, which means it could also last a little shorter than that in case of larger technological changes.

What is the average lifespan of a graphics card? About 7-10 years . They will become obsolete before they die, and that can happen but quicker in, say, about 3-5 years.