Realtime differences between Cortex-R and M and Hardware Features

Dear Arm Experts,

I found this post here in your forum, which asks the exactly the same question I have, too.

Unfortunately there was never an answer ...

Real differences between Cortex-R and M - Architectures and Processors forum - Support forums - Arm Community

Regarding our new products it would be very helpful to receive advice from your side, whether to choose M or R Cores in general.

We need very short cycle times and wonder, if the M Cores have more advanced hardware features to support this and are therefore a better option than R Cores.

Thanks in advance for your answer!

BR

Daniel