Just make sure You don't have intel graphics.
As stated any C2D or pentium DC or even the quicker celeron DC will probably cope so long as the GPU is up to it. And don't rule out the multi-core Turions and Athlons either. Almost anything would be up to it so long as it's at least dual core.
AMD: preferably above HD3200
Nvidia: above 8400M Ghttp://www.notebookcheck.net/Mobile-Graphics-Cards-Benchmark-List.844.0.html