Intel announces overview of Thunderbolt 4 compliant with USB 4, next generation Intel CPU will support
Intel announced details of 'Thunderbolt 4' of next-generation communication architecture on July 8, 2020. According to Intel, this Thunderbolt 4 will comply with the USB 4 specification, which is the next generation communication protocol.
Introducing Thunderbolt 4: Universal Cable Connectivity for Everyone | Intel Newsroom
Intel unveils the Thunderbolt 4 spec, debuting in PCs in the fall | PCWorld
https://www.pcworld.com/article/3564374/intel-unveils-the-thunderbolt-4-spec-debuting-in-pcs-in-the-fall.html
The specifications of Thunderbolt 4 are as follows.
・Maximum transfer rate: 40Gbps
Guarantees 40 Gbps with up to 2 meters of inactive cable
・Video communication speed: 4K output x 2 or 8K output x 1
・Data communication speed: 32Gbps for PCIe, 10Gbps for USB 3.2
・Compatible with Thunderbolt 3
・Thunderbolt 4 based USB Type-C charging possible
・Can wake from the mouse or keyboard connected with Thunderbolt 4
・Compliant with USB4 specifications
-Direct memory access (DMA) protection based on Intel VT-d
The transfer speed is the same as Thunderbolt 3, but the PCIe data communication speed has doubled from 16Gbps to 32Gbps. Also, it is said that the specifications are formulated according to USB4, which was officially announced in September 2019.
Thunderbolt aims to bring together the specifications that have been scattered since USB 3.x into one, and Intel says 'Thunderbolt 4 will be a complete version of USB Type-C'.
In addition, security improvements have also been made, and support for Intel technology 'Intel VT-d' to prevent abuse of PCIe direct memory access is essential. It also announced that Intel's
On the other hand, AMD products and ARM-based CPUs are also equipped with a memory management unit/ IOMMU for direct memory access, so they can be used. In addition, AMD said to the coverage of the technical news media PCWorld, 'There are not so many requests from OEMs to support Thunderbolt', but 'Technical that prevents AMD from supporting Thunderbolt For no reason, the Thunderbolt chipset can connect to the CPU via PCIe.'
In addition, Intel has announced an Intel 8000 series controller that supports Thunderbolt 4. This includes JHL8540 and JHL8340 host controllers for computer manufacturers and JHL8440 device controllers for accessory manufacturers. According to Intel, Thunderbolt 4 compatible products will be available in the market by 2020.
``Thunderbolt provides consumers with a superior connectivity standard for a wide range of devices, improving the computing experience and improving simplicity, performance and reliability,'' said Jason Giller, general manager of Intel Client Connections. USB-C with. With Thunderbolt 4, the advent of Thunderbolt 4 highlights that Intel is advancing the PC ecosystem towards a truly universal connectivity solution.'
Related Posts:
in Hardware, Posted by log1i_yk