Can I upgrade my laptop's video card?

I have a Dell Inspiron E1505 with a Radeon Mobility X1400 video card and I'm looking to upgrade it. Is it possible to do so? If so, how do I tell which video cards would be compatible? ie. which ones would fit and not overheat?



Thanks|||The video card you have is the highest end card available for the 1505.|||In Laptops, the video chip is usually integrated to the mainboard and cannot be upgraded, either you have to change the whole mainboard or buy a new laptop.|||believe it or not you can upgrade your laptop graphic card trying to find it is hard and to meet with the motherboard specs it's best to get another laptop and sell the one you have