Perhaps counter-intuitively, big complex CPUs are incredibly bad at real time control. Instruction latency and jitter can be huge when dealing with complex cach

Perhaps counter-intuitively, big complex CPUs are incredibly bad at real time control. Instruction latency and jitter can be huge when dealing with complex caching systems, deep instruction pipelines, etc. If you have serious hard real time requirements, you will be using a very simple 8bit mcu.