Intel officially released the thunderbolt 4 interface standard a few days ago, An improved version of Thunderbolt 3 standards40 Gbps rate hasn't increased, but it has improved scalability and security. The initial Intel of publicity led to the idea that Thunderbolt 4 would be exclusive to one's own family, and then Intel clarified that it could also be used on other platforms.
Thunderbolt interface standard is a good thing, developed jointly by Intel and and Apple, and its advantages are obvious until USB 3.1,If other manufacturers want to use Thunderbolt interface, they should not only pay patent fees, but also buy Intel's main control chip, certification and so on.
Last year, Intel announced to open the thunderbolt standard free of charge. However, openness does not mean using it casually. If you want to use the thunderbolt interface, you still have to pass the Intel certification. Not only is the master chip indispensable, but also the authentication conditions must meet the Intel specifications.
On thunderbolt 4, Intel mentioned a requirement that the processor should support vt-d virtualization technology. This statement quickly aroused controversy because vt-d is Intel processor that supports virtualization technology. If this standard is required, it means that thunderbolt 4 can only be used for Intel processors, AMD and other manufacturers are not eligible.
Intel later clarified that THunderbolt certification is still open to non Intel systems and products, but the equipment must pass thunderbolt certification to use the vehicle brand and logo. Thunderbolt 4 certification requires vt-d or equivalent DMA security technology.
From Intel's position, in addition to vt-d, other equivalent DMA protection technologies can also be certified by thunderbolt 4, and AMD later confirmed that the processor of zen2 architecture has supported similar DMA technology.
In short, in terms of thunderbolt 4 technology, amd platform can still be used in theory. Of course, the final choice depends on the motherboard manufacturer and notebook manufacturer. After all, it has to pay for certification.
As for apple, arm based chips are also available, and apple has confirmed this.
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