Hello, I am looking at upgrading next month my current HD4890 crossfire setup to something else. I would prefer another crossfire setup that will old me over for another year or 2, if a single gpu will do this ill be happy with that to.
My system specs are Intel Core 2 Quad Q9550 2.8Ghz 8Gb RAM (well 16) Win 7 64bit 2 x HD4890 1000W PSU
More aboutupgrading 4890 crossfire budget
You could get two 6950's. However, that CPU is going to be a bit of a bottleneck. Overclocking it would help.