I have been struggling with this problem for quite a few days/weeks.
My AMD Radeon R7 M260 shows 511 degrees temperature. I am quite sure that this is impossible, but there is something wrong since I can't game 'normal' (without lagging) anymore like I did before.
I have been looking through the web and a lot of people have this problem, but none has a solution...
I have the latest drivers etc.
Can you please help me out?