That is what i meant. The card you have is the two in one, but of course they do that through sli technology, just not through an extra pci-e slot this time. This is the same business a voodoo5 had going on(god bless 3dfx). So correctly you have two cards, referring to a 1gb ram single video card right now is stupid. There's a reason for years on end no one has been able to fit more than 512mb of ram on a video card. I forgot the reasons behind it so much as the manufacturers can't do it. And then that's where i think sli technology hops after years of being gone after the days of voodoo 2's and voodoo 5's(this is where i laugh because many people thought that two 8mb sli'ed voodoo 2's were faster than one voodoo3, one single voodoo 3 is a butt load faster than sli'ed voodoo2's this due in part that the voodoo3 was just superior(i wish voodoo3 had sli)), to help make things less ridiculous. 512mb cards made their debut during the 4th quarter of 2004. You would think 3 years later we would hop up to like 1gb of ram on one card...but no. 256mb of ram is still the standard for high performance gaming right now with 392mb of ram on a card making it's showoff. And of course the 512mb of ****ing ****ty slow ass ram is usually reserved for those low end cards just to get people to buy them.
512mb is pretty new in the high end graphics card lines in special cards like this two in one dealie, 512 in the performance cards will probably be sticking to **** like this for a long time.
For me if i had a video card with 2gb or even 1gb of ram, i'd be trying to tap that for system memory if i could. In other words while they're are 512mb cards out there, and the two in one sli 512 cards making 1gb, sli is only for there for making more ram on video cards seem less ridiculous. Anyway i did see many benchmarks on the 7950gx2 cards, and they are quite nice.