MacBook Pro + Samsung U28D590D · When I got 10.9.3, display on the ancient Dell 30" I’d had plugged into various Macs went south; It would only do 1080x1920, which looked like a bad cartoon. So I ended up with a Sammy U28D590D which is advertised as “UHD” which I think is the official term for 4K. It works really well, albeit at 30Hz, but that doesn’t seem to be a problem ... [3 comments]