If you held two subjects down and forced them to smoke an entire reefer, the White Widow subject would be more stoned than your back yard pot subject. But that isn't the typical use. The typical use is to smoke the reefer until satisfied. It's hype like the commercial hype of Extra Strength Tylenol versus the piddly ordinary tablets, of which three are virtually the same as two Extra Strength.
Until over their growing tolerance levels and loaded.