Honestly that looks sketchy as hell. I sure wouldnt trust it. It also looks like it might be for a CPU as well, picture is too low res though. Like I said, GPUs heat up a good bit by default. GPU temps are allowed to go a bit over CPU temps too. It will probably start acting up around 100C which is where real problems start (soldering connections breaking and such). 80 is considered the general comfortable high range, 90 is pushing it.