Is mbpr 15 late 2013 ME293 compatible ME294 mother board?

My MBPR is late 2013 2.0 GHz Core i7 (I7-4750HQ) ram 8G

Order: ME293LL

Model: A1398 (EMC 2674)

Mother board 820-3662A.

http://www.everymac.com/systems/apple/ma...

【QUASTION】Is it compatible to ME294 mother board with ram 16g I7-4850 ?

considering Somewhat ME293 port, socket, line, or power.

http://www.everymac.com/systems/apple/ma...

compatible to ME874LL ram 16g I7-4960HQ 2.6g?

http://www.everymac.com/systems/apple/ma...

If it is compatible, I could upgrade my MBPR by buying ME294 /ME874 mother board and changing it.!!XD