Quote Originally Posted by natty View Post
That can't be right. Crossfire 4870's score over twice as high as a single 4870???? That would mean the scaling is better than perfect.
Nope.The drivers are in beta faze and not fully optimized for HD4xx in ssingle card mode.Expect even better performance once AMD starts to fully optimize for the new uarchitecture.
So single card performance is not up the max possible.In multi-gpu scenario,2 cards are performing great due to present good optimizations in Catalysts for CF.