Can I change my graphics card

[Hully11]

I have a Samsung series 7 chronos with a geforce gt 640m graphics card but i want to upgrade to a 650m or a 660m can I do this

 

[Phillip Corcoran]

Not on a laptop you can't.

 

[Hully11]

But there are laptops you can change it on, the laptop i had before i changed it