en English

What’s Thunderbold 4? Differences Between Others

USB4 is integrated with Thunderbolt 4. How is USB specification different from previous compatible buses such as TB4, TB3, USB-C, USB4, & USB3?
Thunderbolt-4

Table of Contents

USB4 is integrated with Thunderbolt 4. How is the new USB specification different from previous compatible buses such as Thunderbolt 4, Thunderbolt 3, USB-C, USB4, and USB3?

Thunderbolt 4

What’s Thunderbolt 4

Thunderbolt is a high-speed protocol developed by Intel that provides power and dynamically adjusts data and video bandwidth based on usage. It is now the basis of the USB4 specification.

Thunderbolt 4 and USB4 products will use the same underlying protocol specifications to improve the overall compatibility of USB-C-using products. However, TB4 (Thunderbolt 4) pushes USB4 to the next level by providing a more complete version of USB-C and superset features that USB4 doesn’t need.

What’s new with Thunderbolt 4?

First, Thunderbolt 4 will be USB4 compliant and maintain the industry-leading 40Gb/s performance of its Thunderbolt 3 predecessor. But there are some big changes.

➡️Dual-channel display interface


Thunderbolt 4 introduces and standardizes minimum host system requirements. It offers 40Gb/s, two 4K monitors or one 8K monitor, and 32Gb/s PCIe data on all ports, effectively doubling the minimum expected value of Thunderbolt 3.

For example, the MacBook Pro (13-inch, 2016, four Thunderbolt 3 ports) has two 40Gb/s ports on the left and two 20Gb/s ports on the right. This means that specific ports limit PCIe speeds to 16Gb/s and support only one 4K display. For Thunderbolt 4, this is not allowed – all four ports are required to be 40Gb/s.

Thunderbolt 4 will also extend end-to-end solution capabilities

  • Accessories with four Thunderbolt ports
  • Universal 40Gb/s cable up to 2 m
  • The required PC charging power is up to 100W on at least one port
  • Computers needed to “wake up from sleep” when connected to Thunderbolt Dock
  • Required direct memory access (DMA) protection
Thunderbolt 4 solutions

What are the differences between Thunderbolt4 and Thunderbolt3?

In addition to the expanded features listed above, Thunderbolt 4 still requires mandatory certification of all shipped computers, accessories, and cables for a consistent user experience, regardless of product or manufacturer. It will also maintain compatibility with USB 2.0, USB 3.2, USB4, DisplayPort, and PCIe.

➡️Thunderbolt 4 is always 40Gb/s


Over the years, we’ve seen USB data rates increase from 5Gb/s to 20Gb/s, and USB4 speeds can reach 40Gb/s. However, unlike the USB4, its top speed is optional, and Thunderbolt requires it.

➡️Simplified computer ports


One port for all your needs! Well, at least the mark. Gone are the days of jumbled symbols on accessory ports that look like the same connection. Instead of this:

Simplified computer ports

In Thunderbolt 4, you only see a Thunderbolt logo, and you know that it works with any supported protocol.

➡️Simplified the cable


Thunderbolt 4 cables will also be universal, replacing all different cables with a simple Thunderbolt logo and the number “4”.

Cables of USB ports

END.

DiskMFR Field Sales Manager - Leo

It’s Leo Zhi. He was born on August 1987. Major in Electronic engineering, He is an Enthusiastic professional, responsible person, and computer hardware & software literate. Proficient in NAND flash products for more than 10 years, critical thinking skills, outstanding leadership, excellent Teamwork, and interpersonal skills.  Understanding customer technical queries and issues, providing initial analysis and solutions. If you have any queries, Please feel free to let me know, Thanks

DiskMFR Free Sample Application
  • Still worried about storage product quality?
  • Current suppliers can’t provide perfect after-sales service

  • Get our free sample for testing now

Please let us know what you require, and you will get our reply within 24 hours.

  • Our team will answer your inquiries within 24 hours.
  • Your information will be kept strictly confidential.

Let's Have A Chat

Learn How We Served 100+ Global Device Brands with our Products & Get Free Sample!!!

Email Popup Background 2