Quote Originally Posted by Rydin View Post
a discrete 460 with the 1gb of memory wont outperform a 5870
Radeon Mobility GPUs are coded diferently, a 5870M is equal to (in fact a little worst) a 5670 (desktop), a 5650M is like a 5450 and so on. Nvidia on mid range cards is generally better on laptops.

Here you have a comparison:

http://www.notebookcheck.net/Compari...rds.130.0.html