How hot is too hot? (GPU Temp)

So I had left my CPUID open and left World of Warcraft on the login splash screen. I was amazed to see that while I was gone, the max value of my GPU went up to a whopping 86C (normally it is only 60C max during gameplay).

So I'm curious to know what you guys think is too hot for the GPU?

 

I had my fx 7811's GPU up to 70C at idle. When I tried to play any games especially the graphic intense games it would go up 110C to the point where the frame rate would drop to 1-5 frames per sec. I tried everything including update drivers and update bios but nothing worked.

I dont even want to play any games on my FX no more because it looks like its gonna die on me with the slow frame rates even on older games that are not graphics intense. I think 70C is hot already let a lone 110C

 

The rule of thumb I use is 100*C is too hot. There was a anandtech article where they ran a desktop card up to 111*C and it ran perfectly but I would not want to run anything that hot for an extended period of time.

What you really have to worry about at those temperatures is not the core of the gpu but how hot the vram is running since there is no way of measuring it via software.