Our sources have confirmed that ATI can easily make dual GPU RV670 cards, as the power consumption is very low.
Such a card will clearly end up faster than the 8800 Ultra and it is not that complex to build. This can be the mysterious R670 card while R650 is still the die shrunk R600 core.
Various sources already confirmed the shrunken R600, a 65 nanometre version, but we are not sure about the codename of the product.
RV670 has a 256 bit memory interface, but that can be the next 7950GX2.