first of all srry for my english

hello, my dad won this laptop on his work and he give it to me this are the specifications

intel core i5 second generation 2.30 ghz 2.30 ghz 6gb ddr3 intel hd graphics 3000

my question is, can i change or can i add a new video card? watching some topics on internet i saw taht someone have the same laptop but wiht an ati video card, i dont know alot of computers so i need our help pls