Comcast Debuts $300 Internet Service in Speed Race With Verizon

Comcast Debuts $300 Internet Service in Speed Race With Verizon

Bradley C. Bower/Bloomberg

The Comcast Center building, which houses the headquarters of Comcast Corp., in Philadelphia. They are offering the highest speed Web access, called Xfinity Platinum Internet, with download speeds of up to 305 megabits per second.