The Raspberry Pi Pico 2 of course also uses the Cortex M33, along with a self-developed (in his spare time!) RISC-V core that has very similar performance, other than not having an FPU.
It's pretty easy to compare the same C code on both CPUs on a Pico 2, where you have equal RAM, equal peripherals etc.
It's pretty easy to compare the same C code on both CPUs on a Pico 2, where you have equal RAM, equal peripherals etc.