Sorry to bother, but I'm not really an expert on this matter.
I have a NVIDIA GeForce GT 520MX but I'm not really happy with it... It keeps freezing and crashing... So I looked up for some better Graphic Cards for Laptops.
I've encountered this website: http://www.notebookcheck.net/Mobile-Graphics-Cards-Benchmark-List.844.0.html
In that research I found that my actual Graphic Card was not really that good (what a surprise) so I tried to look for a better one and after some more research I found that AMD Radeon HD 7870M is a good enough for me and not that expensive.
What I would like to know is if that Graphic Card can be used in a laptop.
If there is needed some more information I'll be happy to give it and if it's not asking much, please give me your personal opinion on the Graphic Card and about the choice.
Also, as a newbie, I don't know if my Laptop can handle with that Graphic Card or if it will run smoothly nor anything.
Thank you for your help,
Carlos "leFux" Estevão