With ati tool, will it reset the clocks if the gpu is running too hot? Also, how can i tell how hot my gpu is going to run while playing certain games with high physics and whatnot?
if it gets too hot, your computer will probably crash, or you might start seeing glitches while gaming.
And for checking the temps while gaming, you could always minimize the game while playing it.
Just run the artifact scanner for about 15-30 mins, and if no errors or yellow dots appear, the clock is reasonably safe.
You can also enable logging while ATITool is running, and then check the log/look for a time when you were playing the game, and then average out a few of the readings to get a general temp.