Advanced Micro Devices (AMD) manufactures central processing units—such as their Ryzen and EPYC processor lines—that are built upon the x86 architecture, meaning they fundamentally adhere to the Complex Instruction Set Computer (CISC) classification. Much like modern Intel processors, AMD's hardware architecture employs sophisticated internal decoding units that translate complex x86 instructions into streamlined micro-operations executed on optimized internal execution pipelines. Thus, while they borrow internal execution efficiency characteristics from RISC design, their instruction set architecture remains fundamentally CISC.