I get the same thing with my XFX R9 280x Black Double D. It's factory overclocked @ 1080 1.2v and will run for a short time before I get a driver crash
I think the GPU is to unstable at the clock/volts that they have set. I have not gotten around to flashing the bios yet
To compare - my Sapphire R9 280x Toxic 1st rev is factory oced @ 1150 1.2v.