My performance simulation of GeForce 9800GX2

[Warboy]

ah no, actually the cards don't double their bitrate and memory amount. The card will still run at 256bit with 512mb of memory. Unfortunately with SLI you cannot double them, the specs for one card is what is used for them both when running, they are just running parallel to each other.

Just get good drivers, 512-bit interface (is that 256+256 for cards, no?), and 1GB of memory, underclock all you want, and leave it to the Xtreme guys to get good cooling, clock it way up.

And thats how it should be done.
Atleast, that's what she said.

The Card is Rumored to have Full 512bit with 1GB of Memory, Its not shared from my understanding.