[slantyyz]

Couldn't they do basically what is being done with current 4K monitors? I.e. treat the monitor like a dual screen using two connections?

[slg]

Most 4k displays do that due to bandwidth restrictions of current display cables. There is unlikely to be any GPU benefit to treating it as two separate displays since you still have to push the same number of pixels.

[jacquesm]

Except of course that both outputs could come from their own separate GPU. Plenty of dual GPU cards.