Wow, so much anger going on over guesstimated benchmarks from an unreliable source.
Allow me to lay down the facts to help resolve the arguing.
1. The more ram, the better, regardless of the game, the resolution etc.
2. The faster the speed of the ram, the better!
3. The faster the GPU, the better.
I am sure you get my point.
If have concerns regarding power-draw or maybe consider these 'highest-end available' consumer products as overkill, then, perhaps you should not be considering the purchase of the 'highest-end available' model and go for something aimed at your budget/requirements.
Personally, I play at 4k except when I am using my racing simulator which results in 10440 x 2160 resolution.
Next year i plan to get myself another 3 4K screens and mount them which would result in 10440 x 4320 resolution.
Why would i do this ? Because i can!
Is this reasonable thinking ? Depends if 17PSi Turbo is reasonable in my car with my miltek exhaust, clutch upgrade, RS500 brakepads, Slotted & Vented front/back discs, big-assed intercooler, dreamscience cold air intake, modded swaybars, Quaife LSD and so on.
I am proud of AMD R&D. HBM is a huge leap and will improve with time. I really can see HBM taking cards to 64Gb and maybe beyond. GPU speed might be a limiting factor, but that's another matter. It is more of a case, whether we can or not.
I applaud AMD for being able to continue to survive, and not only that, bring us high-end quality products that make the opposition cry and even bitch. Nvidia has a much larger market-share, much larger R&D fund and has a much larger sum worth, and yet AMD is either on-top, even or slightly under, not the defeated little company in the corner of the market that Nvidia wants them to be.
Don't get me wrong, i love my Titans and i am not some AMD fan-boy, in-fact, i think both companies are playing us and i hate that about both of them, but i can't do anything about that. I can only give credit where it is due.
The last time i was this proud of either AMD or Nvidia was when Nvidia released the 8800GTX.