I've noticed that my GTX 275 temperatures while playing are around 75-85 (sometimes even 85-88) on most games (some are heavy like JC2, some aren't so heavy like GRID). While playing I always set the card fan to 61%. Idle temps (fan on auto - 40%) are 40-48 which is very good.
Do you think that my load temps are too high or its normal on these heats?
BTW, my case is well cleaned from dust, has 2 fans (one pushes air in and one out), if it helps.