Question: what is the difference between comcast and at&t internet?
Answer: Comcast Xfinity is available in speeds ranging from 10 Mbps to 150 Mbps while AT&T internet is available in speeds ranging from 5 Mbps to 75 Mbps. ... Clearly, Xfinity is much faster than AT&T. The reason for the intense differences in speed is the way in which both services provide their internet.