Pajero Sport- Difference Felt Between 2x4 2.5 And 4x4 3.2?

i'm wondering how noticeable the power difference would really feel...

now it seems obvious there should be a significant difference, or is it that the 2.5 only has to lug a 2wd the power would be enough and even out in comparison?

and where would you feel the difference in power:

in general?

just starting out?

full load?

thanks.