yes If you buy any new 8x video card it will run at 4x if that is what your motherboard is set to. You can check what your computer is set to by going into your BIOS when you first start up and in one of the sections it will say something like "VGA Settings" and see if it will go to 8x and if you have a 256mb video card you should be able to set it to use the full 256 mb's there too.