The speed of incoming and outgoing internet computer data can vary between broadband DSL and cable modems. Understanding how cable modems operate in comparison to DSL provides a better understanding of why broadband DSL is the preferred choice in broadband technology.

Cable modem internet service is used mainly in residential settings rather than for business use because it is usually offered as a package deal with cable television programming. Cable programming uses separate channels within one main cable for television broadcasting, outgoing internet computer data from subscribers, and incoming internet computer data to subscribers in specific locations. Unlike DSL, all cable television and internet subscribers in a specific location share the same cable to and from the provider. This means that every cable subscriber sharing that single cable also share bandwidth. The speed of internet service via a cable modem doesn't depend on the distance to and from the provider. It depends on the number of other subscribers on the same cable who are using the internet simultaneously.

Broadband DSL allows subscribers to use the same telephone line for telephone communication and internet access. Broadband DSL uses frequencies that go way beyond the frequency range of regular telephone service, so data transfer speed with DSL is considerably greater than other options. Unlike cable modem internet service, the speed of broadband DSL depends on the distance the provider is to the DSL subscriber and connection speed chosen by that DSL subscriber. DSL is generally faster than broadband cable modem service because of greater amounts of bandwidth availability. Broadband DSL is a dedicated internet link that can be counted on for speed and reliability.

DSL is clearly the best choice of broadband technology for the general public as well as businesses relying on fast connections and internet downloads. Internet users can rely on broadband DSL for faster internet browsing, game plays, and emailing, as well as all other internet-based activities.