Soldato
Running the latest certified Nvidia drivers with a slight OC on my already factory OC'd graphics card and only had one TDR in about 30 hours of game-play in Witcher 3 (Ultra with hairworks off). These problems that folks are having seem to be pretty random, as to what combination of components etc. give issues. My W7 system has got to be around 3 years old now, so lots of crud lying about. So never really sure if the old "try re-installing Windows" is really ever a solution.