Check this out:-
http://www.firingsquad.com/hardware/ati_xpress_200_crossfire_performance/default.asp
Looks like, overall, a Crossfire X850 XT setup is roughly on par with a SLI 6800 Ultra setup, and fractionally ahead of a single 7800 GTX. Well, exept for the F.E.A.R. Beta that is:
Ouch . Most probably a driver issue or other bug though.
http://www.firingsquad.com/hardware/ati_xpress_200_crossfire_performance/default.asp
Looks like, overall, a Crossfire X850 XT setup is roughly on par with a SLI 6800 Ultra setup, and fractionally ahead of a single 7800 GTX. Well, exept for the F.E.A.R. Beta that is:
Ouch . Most probably a driver issue or other bug though.