I have got a 1GB dedicated graphics card geforce gt 630M in my dell inspiron 5420 laptop. Can i add another 2 or 4GB graphics card to my laptop as my autocad and lumion can hardly run in my present 1 GB graphics card?
specs: intel core i7 3632QM @2.2ghz 2.2ghz
ram: 8gb (7.86 gb usable)
os: windows 8.1 64 bit
graphics card: geforce gt 630M dedicated graphics memory: 1 gb
total graphics memory: 4Gb
shared system memory: 3gb