Note II(n7100) dead - Motherboard replacement or buy new phone? topic

Hi, my 2 years old note II got hard bricked and now only option is to replace motherboard. I tried everything but no solution. Samsung service is charge 0 for that and I am damn confused whether to replace the motherboard or get a new phone costing 0 (Moto G 2nd Gen) since I am short of budget..

So my question is
1) Will the performance of note II be better than MotoG by just replacement of the motherboard? I don't game but i just need a good battery life and browsing
2) Is it worth getting new phone or just get MB replaced?

Please help :(