So when playing games at a friend’s house yesterday on my m15x, I started to notice considerable fps drops. So I did an openGL test on the 460m in it and my backup ati mobility hd 5730. The 5730 pulled a 16.4 fps while the 460m only hit 14.3. Because of this I am looking for advice on upgrades. I feel that the 660mx is my best option for the money($80 usd on eBay) but thought I would look for advice from people who know more about this than me.