Update. Reverting the drivers did not resolve the issue for me. The crashes are happening predominantly in the Galaxy Map, but it has crashed elsewhere, such as when changing video settings.
Grats on a solution, but it is obviously not exclusive to the GTX980 when others with different cards are reporting the same issue.
The problem is exclusive to the GTX980. Myself and two of my buddies all have the exact same card. We all had the exact same crashes. After the update to the GTAV drivers we all started crashing even more. What we discovered, due to research on these forums and other places, is that the crashes are due to the GPU clock rate. Using Afterburner (or other software if you prefer) lower the clock rate between 100-200MHz. (Make sure and apply it before you start the game each time, or set it up to be automatic) You do not need to adjust Memory clock rates.
We found this solved crashes across multiple games: Planetside 2, Warframe, Dragon Age, etc.
Gen. Fussypants
Grats on a solution, but it is obviously not exclusive to the GTX980 when others with different cards are reporting the same issue.