I might be wrong, but I think it's about RAM on the graphics card, and that's part of the reason why Scrypt-N11 performs at half the hashrate of Scrypt-N10 on the same hardware. I'm running my rigs with the same 4GB as always, it doesn't seem to require any more system RAM.
But no, all people talk about having 8 gigs of ram.
You absolutely do not need more RAM to hash... I never run more then 4GB of ram on a rig, and I average over 900KH/s/card at scrypt(1024,1,1) and 450KH/s at scrypt(2048,1,1) on my R9 290s. The "more RAM is needed" thing is pure unfounded bullshit.
Others here have already pointed out flaws in some of your arguments, but you were yelling too loudly to hear them.
More unfounded bullshit without quotes to back it up - no surprise. The only one I have seen yelling is you... And it appears you are yelling because you don't have anything to back up what you're saying. Does the bold make you feel more correct, lol? Again, you want to debate something specific, go right ahead. You continue with unfounded personal attacks with no basis or background, and I will continue to show you for the utter fool you are. I'm not one to get angry, but I have no problem picking apart an internet persona like yours. It's pretty obvious this isn't your first account anyway. I would take a bet that your previous account(s) got trolled so badly because of the dumb things you say, that you had to abandon them and create a new account, lol.