What video card can I upgrade to on my laptop?

In order to use HDMI cable to connect my pc and tv I need to upgrade my video card since my computer shuts itself down and just has a blue screen that reads " memory dump" I have a HP laptop and need to know how to find out which video card to purchase.|||Not a good idea to upgrade the video card in a laptop. In many laptops upgrading isn't even possible. If you don't know anything about laptops or computers in general, I'd stay away from trying to upgrade a laptop video card.