For you, anything. The R600 GPU and the RV670 GPU are identical. The only difference is the manufacturing process, going from 80nm to 55nm (allegedly). This means that the HD 2900 series and the HD 3800 series will differ solely in clock speed, which is laughable. And calling is the HD 3870.. makes me think they're trying to screw themselves into the ground intentionally.. And that pisses me off, because I thought that I would FINALLY get to see the Red side get the upper hand, as it had a year ago. But.. I guess there is no red side anymore is there? It's the AMD side now..