die shrink will not happen till this december ... TSMC has already briefed nVdia and Ati on this ... so no 28nm SC processes until december ...and if you want two FERMI chips on one card ... then the clocks and the no.of shaders ahs to be reduced ... if that happens the x2 will performs less or similar to 5970
...
But it will obviously be less power hungry and less heat than the 5970 even if it gives the same performance

and if you want two FERMI chips on one card ... then the clocks and the no.of shaders ahs to be reduced ... if that happens the x2 will performs less or similar to 5970
...








