I doubt it's your GPU because I've been having the same issue randomly (seems like mostly during more intensive scenes) whenever playing ever since beyond light launched. Did NOT have this many issues prior. As OP stated I even wiped my drivers and reinstalled and it helped for a few days but I'm back to getting Broccoli often. I've even had it happen just while emoting. No real lead as to what's causing it in event viewer either. As everyone states this is the only game this happens in and I have no overclock on my Nvidia 1080ti