My experience has been that most 046s don't run much different than 460s, the exception being the 1st year 046-D jugs.
My 046 would not out cut my 044 till I got it ported, IMO, porting makes a big difference on those saws. (at the time both saws had dp muff cover and HD-2 filter, but had not done the timing advance or gasket delete to either saw).
I'm not sure how much difference a gasket delete would make on an 046 or 460, but my 044 and 440 have really responded to it.
Both my ported 460s have 046-D jugs, and I think they are even just a hair stronger. I hear the D jug results in about an extra 10 psi, plus I think (in general) they came with better stock port timing.