Originally Posted by kaptkarl
To answer your question, the fastest card overall on the market is the ATI 4870X2. It doesn't matter if it has 1 or 2 GPU's, it beats the GTX280 so therefore it is fastest card.
Not trying to start a war here guys, just stating (admitting) the truth.
You are starting a war. It isn't always the fastest card because it relies on the driver to make sure crossfire mode works. If it doesn't work then it's a lot slower.