I was wondering about SLi do both cards have to be in the same generation or series i.e 8800GTX + 8800GTX or does it have to run on the same driver i.e 8800GTX + 8600GT the reason I ask is I wanted to know if it would be possible to SLi my GT220 with a GTS450 when they're released and still have the DX11 from the GTS450?

Nope, you need 2 of the same video cards for SLI.

You cannot SLI them, but you can have the GTS 450 as the main GPU doing the work, and the GT220 can let you run extra monitors plus you can use it as a Physx card which gains you performance increases in games with Physx enabled over using just the GTS 450 by itself.

puntoMX and Zenskas are correct. For SLI to work the GPUs must match, though card manufacturer may vary between cards. Hybrid SLI only works between a motherboard GPU and a discrete GPU card.

Edited August 4, 201016 yr by 5eraph