so i just built a pc recently and my gpu temp is 85c+ while gaming but cpu is fine, air flow seems fine, using crystal 280x. i have 2 120 fans in front for intake and 1 120 above cpu as exhaust. gpu is evga rtx 2080 xc, the idle temps are fine.
You have your gfx card's fans at 100% when the temps get above 80C? If so, that is about all you can do with the card. Are you in a warm climate?my fans are set to 100 after 80c. most other peoples rtx 2080s seem to be in the low 70s