If you are gaming under load, yes youre still on the safe side, I wouldn't let them get to 85c though. I think it all comes down to individual preferences on how hot is their "unsafe" because graphic cards, even though not recommended, can handle up to 90c. What are your fan settings? Have you tried cranking the settings up using MSI Afterburner? Do you have enough airflow inside your case, or maybe the case itself is being blocked by some other things that doesnt give them enough breathing room? I have no idea what is your "unsafe" temperature but I never let my cards run higher than 75c, I just like to keep em cool and try to keep their longevity but 80c is something that you really shouldn't be bothered about. Cheers