Retina quality 27" displays need to wait for the next Thunderbolt or similar speed bump. The display requires > 20Gbps to feed. That means waiting for Intel to

Retina quality 27" displays need to wait for the next Thunderbolt or similar speed bump. The display requires > 20Gbps to feed. That means waiting for Intel to pop out ThunderBolt 3 with the newly announced DisplayPort 1.3 38Gbps connection. Too many pixels, too little time. As far as GPU processing power, I wonder how much more GPU it takes for two displays. I use two, but I don't do heavy updates on both at once. I suppose you could imagine some video game wanting to use both, but for professional work it seems mostly about real estate, peripheral awareness, and context switching with a head turn. It probably wants more RAM for compositing, but that seems ample already.