Mystery. 60 is not hot under load. On idle it is too hot.
"Check your usage percentage. It may be there is some program running in the background. I recently had this problem, and it was a virus that caused my GPU to run at 99% at the desktop. Download GPU TEMP: http://www.gputemp.com/
Report back with your percentage of use, if its over 10% with no programs running in the background I would be concerned.
Another thing to check out on is did you recently install a new GPU driver? It may have had some sort of glitch. If your usage is high, I would suggest COMPLETELY uninstalling GFE and the drivers. "
http://www.tomshardware.com/answers/id-2368605/gtx-760-gpu-60c-idle.html