I think it's worth mentioning that Windows really still isn't ready for "retina" prime time. Setting a > 100% scaling results in all kinds of GUI horror all ove

I think it's worth mentioning that Windows really still isn't ready for "retina" prime time. Setting a > 100% scaling results in all kinds of GUI horror all over the place, especially in 3rd party apps. Things are better now than they were 2 years ago, true, but still not a good situation. On the other hand, there is pretty much no problem anywhere on the Mac. Apple just handled it. Pretty much all 3rd party apps were updated within a few months and most just "worked" without modification. A remarkable feat, at least to me. The Mac is still the only way to go if you want a 100% retina desktop experience without glitches. That said, I have no clue if linux is better in this regard. So I guess my point is that the 4K on a Windows laptop is largely wasted. The GPU is not up to driving it for games and the GUI is not up to driving it for daily use. A shame, truly. Disclaimer: I have a 2013 MacPro (with 2 4K Dell monitors) and love it. I use it for Photoshop and software dev.