I'm not saying that the following is going to resolve the issue, but I feel it's worth mentioning.

Back when WoW launched DX11 support I was unable to play the game due to the very same driver related crashes some of you are talking about in this thread. I was positive that it had to be the DX11 client, as all other DX11 games were working without issue.

I tried different driver versions, nvidia control panel settings, game settings, etc. Nothing was working and I continued to wait for Blizzard to fix the client.

After reading the numerous threads on the topic, I started to notice a pattern: the issue was almost exclusively related to factory overclocked cards from EVGA and MSI. I was running a factory overclocked EVGA at the time, so I decided to change the clock speeds to match that of reference speeds for the board.

Crashes stopped entirely from that point on, all the way up until my next GPU upgrade. Sharing the information on the forums seemed to be fixing the issue for other players (though, not always).

To be clear, my GPU never experienced any issues related to the factory OC in any other games. Temps were well within normal ranges, no artifacting was ever present, and other games had never crashed before (specifically DX11 games).

Again, I'm not claiming that this is going to fix the issue, as we're talking about two completely different games. However, it seems to be so close to the issue I had with the DX11 client in WoW that I thought sharing my experience might help someone. It might be a long shot, but you never know.