No issues here on my 6800xt, I do have my fan speed set to go to 100% at 70C, so I normally top out at 70 with 72C peaks, but not much higher, My current case I have to keep the side panel off to keep everything cool, my 6800xt is so big it just creates a pocket of hot air at the bottom of my case and not much I can do to get it out with the glass side panel on.