Intel Graphics Media Accelerator X4500HD and Sims 3?

The Intel X4500 HD integrated chip will run SIMS 3 like a charm provided your machine has sufficient RAM i.e atleast 1 GB for Windows XP and 2GB for VISTA since integrated chips share RAM and use it as V-RAM (Video RAM), personally I would strongly recommend atleast 2GB of RAM regardless of your OS. you might have to lower the video settings a bit, but you can still expect good performance along with some eye candy with the Intel X4500 HD graphics controller.

~GraphicsEnthusiast