Video Card Help

[CD82]

ok before i just go out and buy another video card im in need of some help please.
i could be very wrong but i think it is the end of this video card..

was playing wow running my 3 box team fps started getting bad on all toons 3-14 fps.
stopped playing a while check fan on the card was still running i turned my sytem off..
fired it up good 2 hrs later ran wow on single account 3-14 fps any video card settings.
addons off same thing when i play just one account i hit about 57-64...
ive uninstalled drivers and reinstalled the new ones and same thing...

any other suggestions what this could be ?

this is a evga geforce 680 4 gig FTW