The max temp my GTX 480 has reached in gaming was 76 degrees Celsius. This was after a few hours playing Cryostasis: Sleep of Reason. The fan is set to 80%, and it's running at 800/1600/1000 at 1038 mV. The max load temperature for my GTX 480 at these speeds/voltage was 93 degrees Celsius. This was after a half hour running the EVGA OC Scanner at 1024 x 1024 with the "unlock power draw" feature enabled.