I was wondering. I sent in an RMA to XFX because my 4890 was completely shot. They sent me back an XFX 6850 which is not here yet. Can you crossfire a 6850 + 6870 & how does that work. I am assuming a my Sapphire 6870 will download to match the 6850?
I may end up selling both and grabbing a 7950/70 in maybe a month or so.