In general GPU temperatures are fine until you reach 80 or 85. At 76 you will be OK.
When I played FarCry 3 with my 670 I lowered the graphics to run at 70 degrees. However FC3 is a massive performance hog (Ubisoft- surprise!) and it may not be worth lowering the graphics even for 5-10 degrees as I did.
In general GPU temperatures are fine until you reach 80 or 85. At 76 you will be OK.
When I played FarCry 3 with my 670 I lowered the graphics to run at 70 degrees. However FC3 is a massive performance hog (Ubisoft- surprise!) and it may not be worth lowering the graphics even for 5-10 degrees as I did.