Yeah...some games stress the GPU more than others so if the game crashes the first thing to do is to restore all to default. If crashes continue it's the game or the driver, otherwise voltages and freq must be adjusted for that game. And it goes without saying that this only works if the CPU and RAM are fully stable because the same thing can happen with a CPU or RAM overclock. All can be stable 24/7 except some random game that CTD. I learned that the hard way with AC Valhalla lol.