You are comparing apple and oranges here. Programming the F18A directly in Forth allows for much more control over what is executed. I would say that on the con

You are comparing apple and oranges here. Programming the F18A directly in Forth allows for much more control over what is executed. I would say that on the contrary, if one is ready or have t put the necessary efforts into it, the chips can be extremely efficient. Provided you're not trying to do silly things like running an OS on it... The manufacturing process might not be up to date, but that's precisely, I believe, one of the strengths of the chip: very low power consumption with cheaper manufacturing process.