I was wondering what makes NVidia's quadro cards so much more expensive than even the high end gaming GPUs? I know there more for the "workstation" PC and are used more for 3d modeling and such with programs like 3ds max and maya but what exactly do these quadro cards have that the high end gaming GPUs don't? More cuda processors? Higher Memory bus width? The reason I am asking is because I recently purchased a GTX 780 SC and was thinking of getting into either 3ds max/maya in the near future. Would purchasing another GTX 780 and putting into sli configuration help with programs like max and maya? Thanks for the any help!