Can a laptop have the ability to change the video display/card?

i'm planning to buy a laptop, what question comes with my mind? already in the top.. thanks for your answers. ^^
Can a laptop have the ability to change the video display/card?
no. there might be a handful of laptops where you can change/upgrade the video card and those are not found at local retailers


you can however ad more RAM to the laptop and allow the video card to access more RAM memory from the BIOS
Can a laptop have the ability to change the video display/card?
Upgrading any laptop's video card is difficult, but I do believe that some alienware models offer this feature.
Reply:If you have a dell, youre in luck, as many have a removable and upgradable graphics module, if you have other laptops, they cant be changed