How a NADPH can be compared with 3ATPHow atp are formed by nadph

NADPH and ATP are the product of light reaction of photosynthesis. NADPH and NADH both are different,NADH donates electrons to the electron transport chain (in the mitochondria), and each NADH molecule results in the production of about 3 ATP molecules.

Nadph donates it`s electron finally to ets in mitochondria and during this it pumps 6 proton in outer mitochondrial membrane and 2 proton is equivalent to1 atp so nadph is 3atp and fadh is 2 atp