Even with the best graphics card one year later... there is still a likelihood you will come to experience some choppy cut scenes. There is absolutely nothing wring with wrong with your drivers or OS... The problem lies in the game, but doesn't seems to be patched....
The simple way is to find under options, there is something call "Sync Every Frame". Go ahead and disable that and you will find that the problem just goes away...
Enjoy taking down Atlas...
