You'd need a video card better than NVIDIA GeForce 460 for sure, on my desktop rig, the game runs well, but has severe lag around the "End Turn" part, and that's with "Medium" on most settings and 2x Anti Aliasing. The end turn lag has improved since the last patch, but it's still hardly smooth play, esp. with 6 or more players on the same map.....all of which is to say, the lag is just one reason why I find myself playing Civ IV more than Civ V.