Mobile Intel Chipset suggests that you have a laptop. Radeon HD 4650 is usually a Desktop graphics card. Unless you have a thunderbolt capable laptop and are willing to spend around $1000, you can't upgrade that system to use a Radeon HD 4650 or any other discrete desktop card. Can you provide a little more useful information? What CPU, Motherboard, Graphics card are you using now. Laptop or Desktop? Budget? What PSU do you have? The more detail the better.