(edited by Shinji.2063)
Game is crashing
Are you overclocking at all? I noticed, via GPU-Z, that when this would occur while playing GW2, my OC settings dropped back to factory defaults. I expect it is due to voltage settings in the BIOS, but I didn’t have the time to adjust and test. Regardless, I am curious if your situation is similar to my own.
Of course, this was my experience before the more recent issue which involves the game’s video freezing entirely (not a black screen), the sound continuing normally, and I’d have to C+A+D and terminate the process.
I have nothing overclocked, all default.
Then you’re experiencing the same thing as many other players, myself included obviously.