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 4850: Here we see no real change.
HD 4870 X2: There are some massive gains seen at the lower resolution for the HD 4870 X2.
HD 4890: Here we see no real change.