I have an 3770K @4.6Ghz, 16GB RAM, GTX 680 and GTX 460 (physX), and I've resorted to playing on High with SMAA 2X. Its around 60-70fps. When the frame rate is low in this game its unbearable. Since I really dont see that much of a difference between High and Very High, and combinations of High and Very High, I might as well go for frame rate.
If this was an open world game and had some longevity, I would consider a second 680. But at the reported 6 or so hours of play time, its not worth it.
If this was an open world game and had some longevity, I would consider a second 680. But at the reported 6 or so hours of play time, its not worth it.