my rx 6800's vram runs around 75c while fully loaded. is this too much (long term)?
i have my gpu core underclocked so in full load it runs around 70c. if the vram is high i think i'm gonna underclock it too. (it runs around 2150mhz ish atm)
90-95C is the max VRAM temp should go.
Anything above that and you will get instability issues.
Typically people try to keep it around (or less) than 70C.
So i would say you are safe.