Hey,
since a week or so i got dual titan sli. since yesterday the arma 3 alpha is out.
the problem is, the titans clock speed wouldnt go above 692 MHz @ arma 3 alpha. therefor i only got 40 fps. i think its a driver issue. with only one card the performance is crapy aswell. utilisation = 40%
i already started a sli profile request in the nvidia forum.
i want to let you know this. may be you can optimize your game for gtx titan sli. {F17121}