The only thing I have turned off in the game are shadows everything else is set to max and looking at my card heat its running at about 65-70 C
so I dont know if this is effecting newer cards, something to do with the coding or maybe something with the game code and nvidia drivers.
I use a program called EVGA precision I dont know if this works with all Nvidia cards.
but idle its running about about 41C core clock is set at 650mhz I played another online game can't remember what it was but the game used to crash out and reset my pc 2-5-20 mins into the game.
This may sound stupid but when I dropped my cards core clock to 550mhz the game was stable and never crashed.
If someone wanted to give this program a go and alter some of there card settings see if it makes a difference and report back I would try it myself but I dont have any problems at the moment getting the game to run and run stable.