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.
The numbers here are just disturbing. A minimum of 89 FPS at 2560 x 1600 is just crazy. What it shows us is that it's probably not going to have much issue when it comes to the next generation of games, let alone this gen.