The term bandwidth refers to the transmission capacity of a connection and is an important factor when determining the quality and speed of a network or the internet connection whereas internet speed represents the number of Mbps your connection is allowing to travel from a website to your network. Here are some of the key differences between bandwidth speed and internet speed: -
Internet Speed is bit rate of the circuit while bandwidth is the amount of “speed” available for use. As an example, a 500 Megabit Ethernet MPL'S service which uses a 1 Gigabit Ethernet connection to site would have a bandwidth of 500Mbps and a speed of 1 Gbps.
2. Internet bandwidth
Internet Bandwidth is the one which is assigned by your ISP such as broadband for businesses in UK and which is a constant (as long as your ISP keeps its promise) while Internet speed vary with remote server and the protocol, they use to send the data.
3. More bandwidth does not mean more speed
Yep, you read that right. Suppose you have double the width of the tap pipe, but the water rate is still the same as it was when the tap pipe was half as wide. It will not result in any improvement in speed. This is a good way to understand the basic difference between bandwidth and speed
4. How does network depends on bandwidth?
Business broadband services in UK’s speed is essentially a subjective evaluation of the bandwidth. As mentioned above, the term is often used in place of bandwidth, even by technicians and professionals; many times a network administrator or hardware technician will talk about a 10BaseT, 100BaseT, or gigabit "speed" in reference to products or networks with 10KB/sec, 100KB/sec, or 1,000KB/sec bandwidths.
5. How are they measured?
Bandwidth, typically measured in bits, kilobits, or megabits per second, is the rate at which data flows over the network. This is a measure of throughput (amount per second) rather than speed (distance travelled per second). Just as more water flows through a wide river than a small, narrow creek, a high bandwidth network generally can deliver more information than a low bandwidth network given the same amount of a time.
The main confusion lies in the fact that ISPs advertise their high bandwidth services as faster speeds, which gives users a wrong perception of bandwidth. With this information at your hand, you can now clearly understand the difference between the two and take an informed decision.