My card gets to 79c with Xsyon when I turn tree detail to max (fan at default auto-adjust speed...maybe 50% at most?). With it around 320m the card hits about 74-75c. I don't think CoD:MW ever broke 72-73c, and DF will hang around 65c with 72c being tops.

(GT 240 - 1GB - DDR5 - OC'd by maker)