Since no J-Core chip, as far as i am aware, was produced on an recent node, so comparisons would need to be based on simulations. If you were to talk with a sp

Since no J-Core chip, as far as i am aware, was produced on an recent node, so comparisons would need to be based on simulations. If you were to talk with a specific foundry and shell out the money to get access to proprietary simulators and other proprietary information you could get some simulated number. I am not aware of any such numbers. I heard "decade on a button cell at chip inside free toy inside kids magazine cost" in a presentation once and that probably refers to a 180 nm process but this is hardly a concrete number.