I am having the exact same issue, exact same GPU, Ryzen 5900x (Same TDP), 850W PSU. GPU clock is at stock. Everything is up to date. Constant crashing out of game particularly whenever I die or when I start to move after sitting through a cutscene. This game is a glitchy disaster for me right now, very disappointed. I hope they fix soon. I will update if I find anything that helps with stability :/