DSL beats cable modem in prime-time internet performance duel

DSL beats cable modem in prime-time internet performance duel
Tom Foremski
Digital Subscriber Line (DSL) technology is faster than cable modems in some situations according to a study by US firm Keynote Systems.
Keynote compared download times for Internet web pages for cable modems and DSL lines during peak evening hours and found that even slow DSL can be 11 per cent faster than cable modems. The tests were conducted over a one month period and compared download times for 150,000 web pages from 40 popular web sites.
Although cable modems offer a theoretical performance much higher than DSL lines ,which use standard telephone lines with between 128 and 384 kilobits per second, cable modem lines are shared by many subscribers which degrades individual performance depending on the number of other users on the same lines. Cable modems performed better during the day while DSL performance increased during evening hours.


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