RISC provides high performance per watt for battery operated devices where energy efficiency is key. A RISC processor executes one action per instruction. By taking just one cycle to complete, operation execution time is optimized.
Because the architecture uses a fixed length of instruction, it’s easier to pipeline. And because it lacks complex instruction decoding logic, it supports more registers and spends less time on loading and storing values to memory.
For chip designers, RISC processors simplify the design and deployment process and provide a lower per-chip cost due to the smaller components required. Because of the reduced instruction set and simple decoding logic, less chip space is used, fewer transistors are required, and more general-purpose registers can fit into the central processing unit.
