Computer swap!

hey everyone! i just want to know if the 2005 HEMI for the dodge magnum and the 2008 challenger havethe same engine/computer?
i currently own the 05 magnum RT and i know this may not be exactly the right forum but i feel as though someone here could answer my question:

If i were to put the 2008 challenger RT computer (if compatible) into my 05 magnum rt would it give me more performance?

thanks!