What are the differences between thunderbolt 2 and thunderbolt 3?

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Let us understand the concepts of Thunderbolt 2 and 3 respectively.

Thunderbolt 2

Thunderbolt 2 connector is a Mini DisplayPort connector developed by Apple. It allows a maximum throughput of 20 gigabits per second, whereas the original Thunderbolt port can deliver up to a maximum of 10 Gbps. It achieves over the USB 3.0 technology that has a maximum speed of only 5 Gbps.

Given below is the image of thunderbolt 2 −

Thunderbolt 3

It is the latest and the fastest version of the Thunderbolt provides a maximum throughput of 40 gigabits per second. It was introduced in 2015, by Intel’s. It proves to be a potential gamechanger. Unlike Thunderbolt 2, the Thunderbolt 3 uses the USB Type-C connector and is backward compatible with USB 3.1.

Given below is the image of thunderbolt 3 −

Differences

The major differences between thunderbolt 2 and thunderbolt 3 are as follows −

Thunderbolt 2Thunderbolt 3
Thunderbolt 2 was created in the year 2013.Thunderbolt 3 was created in the year 2015.
It uses MDP (Mini DisplayPort) connectorIt uses a USB-C connector.
It supports a bit rate of 20 Gbps.It supports a bit rate of 40 Gbps.
It uses protocol 4 x PCI express 2.0 and DisplayPort 1.2.It uses protocol 4 x PCI express 3.0, DisplayPort 1.2, HDMI-2 and USB 3.1 Gen-2.
It provides two bi-directional 10 Gbps channels.It provides two bi-directional 20 Gbps channels.
It is not backward compatible with USB-C.It is backward compatible with USB-C.
It is slower when compared to thunderbolt 3.It is faster when compared to thunderbolt 2.
It provides less power when compared to thunderbolt 3.It provides more power up to 100 W when compared to thunderbolt 2.
Given below is a sample image of Thunderbolt 2: Given below is a sample image of Thunderbolt 3: 
raja
Updated on 21-Mar-2022 12:37:06

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