Difference Between ADSL and VDSL (With Table)

Having an internet connection at home or office is a need in today’s era. We cannot process, retrieve, or make a task easier without the internet. Internet is necessary for any field because all the essential data are stored in a system and to retrieve those data, we need an internet connection. When we try to have an internet connection, we should also have a faster connection to have a buffer-free streaming experience and to execute tasks quickly.


The main difference between ADSL and VDSL is that the ADSL offers a lower speed connection than VDSL. On the other hand, VDSL provides a lag-free, smooth surfing experience. ADSL and VDSL are the most used internet connections. However, these both differ in terms of quality and the type of experience they deliver.

Asymmetric Digital Subscriber Line (ADSL) is the most common type of internet connection. This type of connection is typically utilised for phone calls. This line carries both voice and data transmissions. ADSL is nothing but a pair of copper wires carrying the signals. When compared to alternative connections, an ADSL connection is less expensive.

VDSL or Very-high-bit-rate Digital Subscriber Line is a connection used to carry internet signal. This is a brand-new, ground-breaking technology. People prefer VDSL because it is faster than ADSL. VDSL also uses the copper phone line to send signals. However, the speed is limited by the length of copper wire between the residence and the network equipment.

Comparison Table Between ADSL and VDSL

Parameters of ComparisonADSL VDSL
Full formADSL( Asymmetric Digital Subscriber Line).VDSL(Very-high-bit-rate Digital Subscriber Line)
Price When compared to other connections, an ADSL line is much less expensive.VDSL is significantly more expensive than other connections.
Coverage An ADSL connection can range up to 18000 feet.VDSL can only traverse short distances, such as up to 4500 feet.
SpeedIn an ADSL connection, the download speed is 24 Mbps.VDSL provides a high download speed of 70 mbps.
Signal lossThe signal strength of an ADSL connection does not deteriorate quickly.A VDSL connection might quickly deteriorate.

What is ADSL?

ADSL is nothing but, Asymmetric Digital Subscriber Line. ADSL is known for transmitting data at high bandwidth. It entails the transmission of audio, video, and a variety of data. The distance determines the speed of the connection in ADSL. In general, the speed will be higher if the distance between the home and network equipment is shorter.

An ADSL connection can provide speeds of up to 24 Mbps. The ADSL connection is made up of pair of copper wires responsible for carrying out signals. This line employs different frequencies for voice transmissions and internet connections. The ADSL connection is much more affordable than any other connection.

ADSL 2+ is the most recent version of ADSL connectivity. Even though the ADSL connection is a little bit slower than other connections, it covers a larger distance. The maximum coverage of this type of connection is 18000 feet, which is amazing. And ADSL also supports plain old telephone service and asymmetric data.

What is VDSL?

The acronym VDSL stands for Very-high-bit-rate Digital Subscriber Line. When compared to other connections, VDSL is noted for its greater speeds. VDSL supports high bandwidth devices. By employing a VDSL connection, Internet application users can enjoy a smoother, faster surfing experience. It also has a higher capacity and is more secure.

Video on Demand and High Definition Television is made possible via VDSL. The coverage of the VDSL connection is 4500 feet. VDSL, on the other hand, is known for its symmetric data offerings and POTS service. Even though VDSL has a faster connection, it is only good for short distances.

Furthermore, the pricing is not very reasonable. Internet usage, surfing, downloading all becomes swifter in the VDSL connection since it transfers data at 55 Mbps downstream and 2.5 Mbps upstream. VDSL is also less difficult to set up. In this sort of connection, the signal is sent by a pair of optical fibres or copper wires.

Main Differences Between ADSL and VDSL

  1. The full form of ADSL is Asymmetric Digital Subscriber Line. In the meantime, VDSL stands for Very High Bit Rate Digital Subscriber Line.
  2. ADSL is capable of covering distances of up to 18000 ft. A VDSL connection, on the other hand, can only cover 4500 feet.
  3. ADSL is a cost-effective connection when compared to other options. VDSL, on the other hand, is far more expensive than conventional connections.
  4. The downstream speed of an ADSL connection is 599 kbps to 8 Mbps, and the upstream speed is 64 kbps to 1 Mbps. VDSL, on the other hand, has a downstream speed of 55 Mbps and an upstream speed of 2.5 Mbps.
  5. Asymmetric data service is provided by ADSL, whereas symmetric and asymmetric data services are provided by VDSL.


The most extensively utilised internet connections are ADSL and VDSL. However, these types of connections have a range of variances in terms of availability, speed, pricing, and applications.

Since there is a higher demand for lag-free, smoother and faster connections, people prefer VDSL connections. VDSL, on the other hand, is costly and can only reach short distances. VDSL provides the capacity to run high-bandwidth applications without any issues. However, ADSL is more widely available and preferred by consumers than VDSL.

These two connections are primarily DSL (Digital Subscriber Line) versions. DSL is responsible for converting a traditional phone line into a high-speed internet connection.

The main disadvantage of a VDSL connection is that it is susceptible to attenuation. VDSL, on the other hand, is one of the greatest connections since it offers high data rates over small distances. Apart from the fact that it is pricey and that the speed of a VDSL connection decreases as the distance rises, it is a very decent connection to utilise.


  1. https://ieeexplore.ieee.org/abstract/document/679604/
  2. https://digital-library.theiet.org/content/journals/10.1049/ip-smt_20031072