a@a 07/05/2017 (Wed) 09:53:03 No. 966 del
I can't help you with the memory usages of those OSes, but I would say that at one point, I got down to 60 mb on an x86 Debian GNU/Linux (before Ian died) with X and running openbox and urxvt. x64 is at least double that with a similar barebones setup (very little background resources) for some dumbfuck reason that I have no idea why. I'd blame the hardware first, kernel second, OS third, yourself fourth, and some crackers fifth. They really just don't make things the way they used to anymore