Hi!
i install 10.9.3 on my MBP Pro 2011 13" but with my Dell P2815Q 4K display ( 3840 x 2160 on MiniDP 1.2) no show me Retina Option
Image
I need a MBP Pro Retina ???
You can only do retina scaling on 4K with late-2013 rMBPs (with TB2) or the new Mac Pro.
For 60 Hz support, only the 15" and Mac Pros are supported. The 13" rMBP doesn't support 60 Hz.
I have a 2013 rMBP 13 inch and am not getting any retina scaling above 1080P with a 4K display. Any thought as to what I might be doing wrong?
Are you doing it over HDMI or mDP?