Cable internet faster than DSL

Next Story

Social media improves writing skills

Cable internet access is faster than the one provided by digital subscriber line (DSL) or the transmission of internet via the wires of a domestic telephone network. This has been proven by a study that compared data captured under the US Federal Communications Commission’s broadband measuring project.

Authored by Jolene Splett and Daniel Genin, the research revealed that American DSL users enjoy a download speed of 5.4 megabits per second (Mbps) on average, while cable users get a download speed of 13.5 Mbps. However, cable users experience more congestion than DSL, resulting in lower download speed.

“DSL broadband provided connections on average delivering download speeds above 80 per cent of the assigned speed tier more than 80 per cent of the time. By contrast, a significant fraction of cable connections received less than 80 per cent of their assigned speed tier more than 20 per cent of the time. One must keep in mind that cable connections typically have higher download speed tiers than DSL connections,” noted the research.

The authors explained that cable networks are more prone to recurrent congestion than their DSL counterparts due to something in the internet service providers’ (ISPs) network architecture.

In particular, 9 to 12 per cent of the studied DSL connections suffered recurrent congestion, whilst 27 to 32 per cent of cable connections have this problem. Apart from that, some internet cable providers recorded high concentrations of recurrent congestion.

Interestingly, the study also discovered that DSL is more resilient if there is a “tight initial segment”. For DSL, 37 to 50 per cent of connections with a tight initial segment saw recurrent congestion, whilst for cable it was between 91 and 100 per cent, they added.


Dell PowerEdge R610 Server Dual Xeon X5550 QC 2.66GHz 48GB 6x 300GB 15K SAS RPS picture
Dell PowerEdge R610 Server Dual Xeon X5550 QC 2.66GHz 48GB 6x 300GB 15K SAS RPS
Dell PowerEdge M610 Blade Server Dual Xeon E5520 QC 2.26GHz 24GB 2x 146GB SAS picture
Dell PowerEdge M610 Blade Server Dual Xeon E5520 QC 2.26GHz 24GB 2x 146GB SAS
Dell PowerEdge R610 Server Dual Xeon X5690 6C 3.46GHz 128GB 2x 146GB 15K SAS RPS picture
Dell PowerEdge R610 Server Dual Xeon X5690 6C 3.46GHz 128GB 2x 146GB 15K SAS RPS
Dell PowerEdge R710 Server Dual Xeon X5675 6C 3.06GHz 96GB 8x 1TB SAS 2.5in RPS picture
Dell PowerEdge R710 Server Dual Xeon X5675 6C 3.06GHz 96GB 8x 1TB SAS 2.5in RPS
Dell PowerEdge R710 Server Dual Xeon X5677 QC 3.46GHz 72GB 3x 4TB 3.5in Rails picture
Dell PowerEdge R710 Server Dual Xeon X5677 QC 3.46GHz 72GB 3x 4TB 3.5in Rails