Originally Posted by UltimateBMW
Pretty sure it is additive. Both cards must also match though. There is a 1GB GTX 460 also though. For around $20 extra.
Yeah I knew about the matching, but I wasn't sure about the memory properties in SLI. I've always been a stout single-card supporter, and the only thing not to like about this card for me is the memory size. I wonder how well SLI is scaling with these cards these days....
I saw the 1GB version on newegg, but I don't think I'm familiar with the manufacturer.