Difference: 1. The maximum transmission speed of USB2.0 is 480Mbps, while the maximum transmission speed of USB3.0 is 5Gbps; 2. The transmission speed of USB2.0 is 30MB/s, and the theoretical upper limit is 60MB/s , while the actual transfer rate of USB3.0 is about 320MB/s, and the theoretical upper limit is 640MB/s.
There is a significant difference in speed between USB2.0 and USB3.0.
The maximum transmission speed of USB2.0 is 480 Mbps (Megabits per second), while the maximum transmission speed of USB3.0 is 5 Gbps (Gigabits per second). In addition, the actual transfer rate of USB3.0 is about 320MB/s, and the theoretical upper limit is 640MB/s, while the transfer rate of USB2.0 is 30MB/s, and the theoretical upper limit is 60MB/s.
This speed difference stems from the differences in design and technology between the two. USB3.0 uses more wires, including four for data transmission and five for power and ground, which enables it to achieve higher transmission speeds and power supply. However, this also causes USB3.0 to consume more power during transmission.
To sum up, USB3.0 is significantly better than USB2.0 in speed and can meet users’ needs for faster transmission of large amounts of data. However, users also need to consider device compatibility, power consumption and their own needs when choosing which USB interface to use.
The above is the detailed content of What is the speed difference between usb2.0 and 3.0. For more information, please follow other related articles on the PHP Chinese website!

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