Guys, thank you so much for the informative answers. Will definitely get raidbot and see where that takes me. I’ve never tried it before so wasn’t aware such a useful tool existed. 
And yes, Decayin got the gist of what I was asking quite well. I meant the weapons are exactly the same in every aspect (no sockets, same secondary stats, etc). Only difference is ilvl. Player also doesn’t matter to me because I will be playing the same way with either weapon (while trying to better myself of course). I just wanted to understand how the power creep is when going from 430 to 440 I.e. 10 ilvls for a single item( in this case, weapons).