According to the press release:
Extreme 105 is made possible through the use of DOCSIS 3.0 technology. At a connection speed of up to 105 Mbps, Comcast customers can not only download and watch a hi-def movie in about 5 minutes, but also play online interactive games, send and receive email attachments, shop, and update social networking Web pages faster than ever before. Here are some examples that compare different online customer experiences of a 105 Mbps connection to a 6 Mbps service:
Download Example Time at 105 Mbps Time at 6 Mbps High-definition movie (4 GB) 5 minutes 1 hour and 30 minutes Standard-definition movie (1.5 GB) 2 minutes 30 minutes Standard-definition TV show (300 MB) 20 seconds 7 minutes Music album (10 songs or 40 MB) 3 seconds 50 seconds
Note: Typical file sizes and actual download times may vary. Times are approximate.