We finally managed to confirm a few details about GT200. This is without a doubt a single chip card, and as we said before, it's quite a big one.
The second important detail is that the chip supports 512-bit memory, and at least on the memory side it is ready to fight RV770XT.
We know that GT200 is a high-performance part and it will certainly be faster than RV770XT; but we are not sure if it will be faster than R700, a dual chip card. At this time, no one knows the answer to that.
It needs a dual slot cooler and it will dissipate quite a lot of heat, but it promises great performance.