Far Cry 2
The Dunia Engine was built specifically for Far Cry 2 by the award-winning Ubisoft Montreal development team. It delivers the most realistic destructible environments, amazing special effects such as dynamic fire propagation and storm effects, real-time night-and-day cycle, dynamic music system, non-scripted enemy A.I. and so much more.
HD 5770 Here we see no change.
HD 5870 Performance is a little up and down, but really nothing too serious.
HD 5970 The minimum at 1680 x 1050 has jumped a little. Already we've got very playable numbers, however.