4 Thunderbolt
Thunderbolt 4 was announced at ces 2020 and the final specification was released in july 2020.
4 thunderbolt. Thunderbolt 4 was first expected to improve upon that with intel claiming that it would be four times faster than usb prompting many to expect an 80gbps bandwidth for thunderbolt 4. This is a huge compatibility benefit. Whether with coming usb4 devices or using any prior generation of usb device with a thunderbolt 4 laptop all usb devices can just work.
It is the most comprehensive thunderbolt specification yet with compliance across the broadest set of industry standard specifications including usb4 displayport and pci express pcie and is fully compatible with prior generations of. Thunderbolt 4 is based on open standards and is backwards compatible with thunderbolt 3. Thunderbolt 4 provides a superset of usb and thunderbolt functionality.
We will have more details to share about thunderbolt 4 at a later date. What is thunderbolt 4. The first set of thunderbolt 4 device controllers based on intel s 8000 series the jhl8540 and jhl8340 will be debuting in the market sometime later this year as well a device controller.
Thunderbolt 4 will also include support for docks with up to four thunderbolt 4 ports with the bonus of the ability to wake a computer by touching the keyboard or mouse when both the peripherals. Thunderbolt 4 supports 40gb s data transfer and can be used with three downstream ports to share bandwidth. The key differences between thunderbolt 4 and thunderbolt 3 are support for usb4 protocol and data rates a minimum bandwidth requirement of 32 gbps for pcie link support for dual 4k displays and intel vt d based direct memory access protection to.
The first pcs using thunderbolt 4 will arrive this year along with intel s new tiger lake processor but it appears the all purpose port won t be any faster at transferring data than the 4 year. Like thunderbolt 3 thunderbolt 4 uses a usb c connector to deliver data video and power over a single connection.
