The numbers from the second site match the maximum download rate that Steam feeds me, as well as any other direct feed I have tried. Also the percentages of feed rate are identical on two different speed plans I have had with Comcast at this location. If you run speedtest.com, Comcast will open up the pipe while shutting down all other incoming feeds and give a rate that they have literally fabricated due to the code in their web system. When the test is over, the datarates on "all" of the incomming feeds will return to the lower numbers in total. If you are using the test link on Comcasts site, YOU ARE BEING LIED TO. This is of course, my personal opinion.