Stop reading if you wish.. boo

... But really, how great do you think a 6970M is? .. You think I'm being ignorant and smartypant here, do you?
I have an iMac with 2GB VRAM, but I was sorry for choosing it. It barely able to play ANY Cryis on 1440p with Ultra/Enthusiast setting, even 1080p is not that smooth !! And I did it with 2GB VRAM!! No different from 1GB, not exactly smoother, not loaded more quickly (I have 12GB RAM BTW)
So, what games do you think in the future that could be handled better on a 6970M chip just by having 2GB VRAM instead of 1GB?? That's why I said it was the most useless BTO option made for iMac, albeit it "only" cost $100.
EDIT: In short .. It's better to have 6990M 512MB (let's pretend it exist) than have 6790M 2GB if you know what I mean, and I would pay extra $100 for that alternative. RAM amount on GPU isn't as important as it is in system. Core amount & clock, memory clock and bandwidth play much more important role.