This is really a matter of conjecture. It's very hard to do a study about this when you are high and trying to test it.
I have read chemical breakdowns of both and there are differences but the kind of buzz comes from the strain and genetics, not the color of tricomes. White just means you harvested a little early.
Just my opinion, don't everybody snap at me!
(Happy Halloween!)
bekind/Coloradojane
www.growweed.com