[veidr]

For me the disappointing takeaway is that good high-res monitor support isn't implemented. Like the reviewer, I had assumed the same types of scaling options that the high-res MacBook Pros have.

However, according to this review, the new Mac Pro doesn't work with the new Dell 4K monitors (I don't consider 30Hz refresh as 'working'), and even with the 4K display that Apple sells, it only works at its native 3840 x 2160 at 60Hz. When choosing a 'Scaled' resolution, it renders blurry junk.

That is pretty disappointing (although I imagine it will be fixed at some point).

http://anandtech.com/show/7603/mac-pro-review-late-2013/11

[justincormack]

It sounds like its not sane to get a 4k monitor now as a long term investment, as the monitor side is not standardised yet.