In Barcelona, you can get several internet providers and different internet connections. But, among them, go for fiber optics if you are looking for the fastest internet connection. It offers twenty times higher speeds than regular cable connections. You can go up to 50 Mb, 100 Mb, 300 Mb, and even 1 GB with it. But, if you select ADSL, you can only expect a speed of up to 20 Mb.