|When it comes to gaming, the graphics are generally the most important hardware item. As kuwese pointed out, laptop graphics usually aren't upgradeable. Your system has the Intel GMA 4500M...here's part of a review:|
"The gaming performance of the 4500M is not really good. Only less demanding 3D games and very old games may run fluently in low detail settings. Sims 3 and F.E.A.R. for example achieved 30 fps (with stutters) in low deatails and low resolustions (combined with a fast CPU). 2D applications, games and Windows Vista / Windows 7 Aero are supported without any performance problems.
Compared to other modern integrated chipsets like the GeForce 9400M or the Radeon HD 3200, the 4500M is clearly the slowest especially for 3D games."