Difference between Fast Ethernet and Gigabit Ethernet

Ethernet are several types:

  1. Fast Ethernet
  2. Gigabit Ethernet
  3. Switch Ethernet

Fast Ethernet is the Successor of 10-Base-T Ethernet. It is more popular than Gigabit Ethernet because its congiguration and implementation is simple. It is faster than its successors. Its variants are:

  1. 100Base-T4
  2. 100Base-Tx
  3. 100Base-Fx

The coverage limit of Fast Ethernet is up to 10 km and its round-trip delay in Fast Ethernet is 100 to 500 bit times.







Gigabit Ethernet is the successor of Fast Ethernet. It can produces upto 1 Gbps speed. It is less popular than Fast Ethernet because its configuration and implementation is complicated than Fast Ethernet. The coverage limit of Gigabit Ethernet is up to 70 km.

Let’s see the difference between Fast Ethernet and Gigabit Ethernet:

S.NO Fast Ethernet Gigabit Ethernet
1. Fast Ethernet provides 100 Mbps speed. Gigabit Ethernet offers 1 Gbps speed.
2. Fast Ethernet is simple configured. While Gigabit Ethernet is more complicated than Fast Ethernet.
3. Fast Ethernet generate more delay comparatively. Gigabit Ethernet generate less delay than Fast Ethernet.
4. The coverage limit of Fast Ethernet is up to 10 km. While the coverage limit of Gigabit Ethernet is up to 70 km.
5. The round-trip delay in Fast Ethernet is 100 to 500 bit times. While the round-trip delay in Gigabit Ethernet is 4000 bit times.
6. Fast Ethernet is the Successor of 10-Base-T Ethernet. While Gigabit Ethernet is the successor of Fast Ethernet.



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