Intel officially released the Thunderbolt 4 interface standard a few days ago, which is an improved version of the Thunderbolt 3 standard, the rate of 40Gbps has not improved, but has improved in terms of scalability, security, etc. Initially Intel’s promotion made people think that Thunderbolt 4 would become a home-grown, and then Intel clarified that it could also be used on other platforms.
Thunderbolt interface standard is a good thing, Intel and Apple jointly developed, before USB 3.1 its advantages are extremely obvious, other manufacturers want to use the Thunderbolt interface not only to pay a patent fee, but also to buy Intel’s master chip, certification and so on.
Last year Intel announced the free opening of the Thunderbolt standard, but the opening does not mean casual use, in order to use the Thunderbolt interface still have to pass Intel’s certification, not only the master chip, certification conditions must also comply with Intel’s specifications.
On Thunderbolt 4, Intel mentioned a requirement that processors support VT-D virtualization technology, which quickly became controversial because VT-D is an Intel processor that supports virtualization technology, and if this standard is required, it means that Thunderbolt 4 can only be used for Intel processors, amd and other vendors.
In response, Intel later clarified that Thunderbolt certification remained open to non-Intel systems and products, but that the device must pass Thunderbolt certification to use the vehicle brand and logo. Thunderbolt 4 certification requires VT-D or equivalent DMA security technology.
In addition to VT-D, other equivalent DMA protection technologies can be certified with Thunderbolt 4, and AMD later confirmed that the Zen2 architecture’s processors already support similar DMA technologies.
In short, in Thunderbolt 4 technology, AMD platform can continue to use in theory, of course, finally how to choose also depends on the motherboard manufacturers and notebook manufacturers, after all, also have to spend money to certify.
As for Apple, arm-architecture chips are also available, and Apple has confirmed that.