Dual 580s in SLI or 2 5870s in crossfire

[Codex]

Originally Posted by luthier

I don't understand the question about multi GPUs.

Of course they are supported! How can they be not?

Whether they offer any performance advantage is a different question, to which I don't have an answer at this time.

That comment suggests to me that there's no code optimisation in CoD itself for Multi-GPU, and they're relying on the drivers to do all the work.

I wonder if Luthier can clarify this.