Unless you are on an OC-192 connection lol which is not the case, the Gigabit card will not help you on the internet... however.. if you have gigabit network set up at home, you will see a large performance increase, when transfering files from one computer to the other, however that will still be limited by cables, system resources, what type of switch you are running, type of cards, speed of systems doing the transfer etc.. however that still will not increase your speed when downloading from the internet, only on your local network.