Like @cliffordcooley said, we need to know the exact model of card that you have. With the latest driver you may be able to play those games at variable framerates. For example, CoD: MW3 runs on an old engine and you may be able to run it at like 40-50 FPS depending on your card. On the other hand though, Tomb Raider is a pretty demanding game and is pretty buggy. So you may be able to run it or you may not be able to depending on the card. League of Legends can be run no problem since the system requirements are fairly low.