Co-worker wants to do Flight Sim X on Laptop....

So as the title states a co-worker of mine was asking about playing Flight Sim X with at least moderate to high detail on a laptop. I don't know much about Flight Sim X other than I heard it was a beast to run on desktop even with top systems. I'm assuming if thats still true and hasn't been improve upon by game revisions or something then hes SOL about running it on ANY laptop unless its at the lowest of game settings.

Could someone enlighten me so I can tell him what hes going to have to do/upgrade to or is it going to be impossible on current laptops to run this game smoothly with details turned up? Thanks for any help with this as I don't keep up with this style of game and haven't seen any laptop benchmarks.