There are no games designed specifically for laptops.
Also, laptop video cards are weaker than desktop versions. The Mobility HD 5850 is slightly weaker than the desktop HD 5770. There is a pretty large gap between the desktop HD 5850 and desktop HD 5770.
If you have a laptop with an Intel 4500HD, then that is less than half the performance of the the desktop HD 5450 which is the weakest card in the Radeon HD 5xxx series.
The following is a video from Youtube of Crysis 2 on a desktop with an Intel integrate video. I did a search on "intel 4500 hd crysis 2" to get the video.