Will be really interested in your experience with eyefinity and crossfire with 290.
I currently have a 6990 and eyefinity. I'm hovering between a 7990 if I can find one for near £399 again or just to go for 2 x 290 pro which is tempting given the frame pacing fixes are supposedly built into the hardware rather than having to wait for driver fix on 7xxx series. Plus 4gb ram instead of 3gb will help at high res.
What have you upgraded from ?
Cheers
single 290
eyefinity 120hz 5040x1050 3x1680x1050 screens.
had issues with my 7970 due to using apple active adapters.
with this 290 I need one of them for displayport so using apple adapter with minidisplay to displayport.
just installed it heh will get back with tests