That makes me nervous for all kinds of reasons. I'm not a hydrophobe, but out-of-the-box closed-loop cooling solutions have a slightly checkered past and too many points of failure for my comfort zone. I really don't want to see that become the "new normal". If it causes closed-loop solutions to become that much more robust and affordable, I'm game, but I'm trying to think of my neighbors and the wider market. It was a commoditized laptop world 7 years ago. It's an increasingly mobile/tablet/console world now. TSMC is running 20nm fab lines... and cranking out mobile SoC stuff on'em. At least server hardware repurposes very well for crunching. What increasingly exotic solutions means for the continued popular existence of my other hobby, PC gaming, is why I give these latest cards the stink eye.
Sure, this thing CAN be run in the right system. And around here are probably the few people who can do it and are willing to pay for it, but c'mon. In every engineering environment I've lived in, "MOAR POWER!" (in the bad sense) has always been an indication you're out of *good* ideas. Both companies have been at build it bigger now for quite some time (while little things like SLI/Xfire or 4K driver/game/app/OS support, which could use more resources with every new release, remain iffy). The Geforce 800 series and the swashbucklers of the Pirate Islands (wharrrever they be) can't come soon enough. If the 800 series lives up to the hints provided by the 750, it'll be a dreadnought for those of us who pay for our power.
I already had to give up on AMD CPUs some time ago. If I have to give up on ATI GPUs I will, with much grief, give them a Viking funeral. Fortunately it looks like all I have to do is plug them in.