“USB beats Thunderbolt” 80Gbps USB4 standard announced

The USB Promoter Group has released the USB4 version 2.0 specification, which provides full-speed speeds of up to 80 Gbps with a USB-C connector. The new standard is compatible with the existing USB4 1.0 as well as USB 3.2, USB 2.0 and Thunderbolt 3. USB 1.0 does not support Thunderbolt 4. The new standard will be officially announced in November, and the first products equipped with the new standard are expected to be released around this time.

Up to now, USB and Thunderbolt basically coexist in a parallel world. A bit of a licensing issue, Intel-based laptops use Thunderbolt 4 or Thunderbolt 3 ports, and AMD Ryzen-based laptops use USB4. These three technologies provide broadly comparable performance.

Increasing bandwidth is not as simple as a patch or firmware upgrade. AMD’s Ryzen chips also have to be designed to accommodate the new standard to take advantage of the increased bandwidth, which is not something that can be completed overnight. Intel also has no obstacles in introducing USB4 2.0.

The increase in bandwidth is likely to have a big impact on external docking stations. USB4 2.0 is useful for gamers and content creators because it supports high-resolution displays that exceed the general 60Hz, and up to three 4K 60Hz monitors can be connected.

The cable utilizes the existing 40Gbps USB-C passive cable and the newly defined 80Gbps USB-C active cable specification. Therefore, the existing USB-C cable may or may not support a transfer rate of 80 Gbps in some cases.

Source: ITWorld Korea by www.itworld.co.kr.

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