@dimkr :-
Unfortunately, much as you and I both know it's not the case, try explaining it in layman's terms to the average non-computer-user in the street.
The simplistic view is that something with twice the bus address width, and more than twice the capacity, MUST, by its very nature, be twice the size. That's the way the average Joe's mind works.....and it's a very simplistic equation, fitting the "simple" maths that most folks understand.
Try as you might, you'll never make them see otherwise. You'll just be banging your head against a brick wall until hell freezes over..... When it boils right down to it, they don't want to understand, because for them it's completely meaningless.
They couldn't care less, so long as they can watch NetFlix, access their favourite social media site and chat with Grandma on a Sunday afternoon.
(*shrug*)
Mike.