I have been using amd a4 radeon 6320 hd graphics processor along with 4gb ram and nvidia geforce 210 1gb graphics. now i want to buy amd a8 7600. now as the ipu of amd a8 7600 is more powerful than the geforce 210 so while installing it, will it will it be necessary to remove my graphics card?? and if I remove it will my pc go into vga screen?? if that happens how will i change back my pc into normal screen??