HIS HD6770 IceQ X Turbo Crossfire Review
Call Of Duty Black Ops
If you prefer your FPS games to be PC versions of console titles, then the HIS HD6770 definitely gets it done. Black Ops works perfectly fine even on a single-card and the Crossfire mainly serves to keep the minimum frame-rate at the 60 FPS mark, vital in online shooters.
Medal of Honor
Such is the woeful coding behind MoH that the extra stress the second card places on the system actually makes the minimum frame-rate performance worse than with a single card whilst not really giving us any extra headroom.