Cheaper is not even the primary reason to use RISC-V over Arm. The ability to modify the design for your application and be able to apply a plethora of cores w

Cheaper is not even the primary reason to use RISC-V over Arm. The ability to modify the design for your application and be able to apply a plethora of cores where they are needed at only the cost of silicon area. Apple has been moving their management cores on their M-series parts from Arm to RV and they have an architectural license. Everyone has an architectural license for RISC-V, you can add your own instructions, change the mix of available instructions. A whole parametric RV32 or RV64 will be available on every node at every fab. This move by Arm is absolutely to block RPI from moving to RISC-V. They have mindshare and distribution.