Why the sketch size and amount of RAM used by Arduino DUE is more than Arduino MEGA 2560 -

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can please tell me why due sketches occupy more ram compared mega same code. need make analysis.

please solve query.

it's because have different microcontrollers: arduino mega 2560 has 8-bit avr atmega2560 microcontroller , arduino due has 32-bit arm cortex-m3 microcontroller.

ram

variables smaller in 8-bit architectures in 32-bit architectures. example: int 2 bytes long in mega 2560 4 bytes long in due.

because of that, program in due use more ram program in mega 2560 (and other atmega-based arduino board uno , leonardo).

sketch size

the reason similar ram: instructions in 8-bit avr architectures 16 bits long while in arm architectures, majority of instructions 32 bits long.


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