Intel held the patent of 16-bit x86 in the original 8086 era, and introduced 32-bit x86 on i386 introduced by 1985, and then added special instruction sets, such as MMX, SSE, SSE2, SSSE3 (Super SSE3), SSE4. 1, SSE4.2 and for66.
AMD has 64-bit x86 patents, referred to as EMM64, AMD64, x86-64 or x64, and of course 3D-Now patents.
No other manufacturer can manufacture x86 processors without Intel's permission, and no one can produce 64-bit x86 CPU without AMD's permission. ?
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Intel processor has the highest market share. At present, the technical specifications and standards of computer CPU are also in accordance with the provisions of processors produced by Intel, accounting for more than 80% of the market share, and it is also the most willing brand of computer CPU processor for many people when purchasing computers.
AMD is second only to Intel. In Qiyu's impression, AMD's market share has never surpassed Intel's. It can be said that it is the "Millennium second child" in the brand of computer CPU processor, but AMD's production technology is also constantly improving.