GTX 660M also 28nm, what is the different with GTX 680M?
Dell started selling the 680M cards in the M18x R2 yesterday. The price is crazy though 1100 for SLI
Braga, sorry, there seems to be more than one 660 version. One of them is only a relabeled GTX 580 (nVidia does this since its 8800 series) whereas the other one is a midrange Kepler.