When i first installed my GTX560 ti hawk, i was very dumb and left a cable blocking 1 of the fans, the temp got up to 100+ Degrees and stayed there for i think 10 minutes. then i fixed it and my temps are fine now but:
Could this temporary overheat still affect the performance today (half a year later)? Bf3 is running fine and there are no problems (i think).
(sorry for crappy english)
You should be fine. You would have noticed if it had been damaged by now. Ntm the 5xx cards run hot anyways.