Khaos Tian on Twitter: "@NadithRahman Both rMBP and nMP says 60Hz (Pic MP) but it feels different so here is a slow-mo http://t.co/3qWCFSCvWJ http://t.co/CwLdih82Y3"

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mg428 ‏@NadithRahman 7 Mar 2014

@KhaosT It is interesting that there are many websites which claim 4k@60Hz output on rMBP and refer to your original tweet. Did you notice?
Khaos Tian ‏@KhaosT 7 Mar 2014 Santa Clara, CA

@NadithRahman maybe it’s because my language isn’t clear… I was trying to say both rMBP and nMP gets ability to choose upscaled resolution
mg428 ‏@NadithRahman 8 Mar 2014

@KhaosT Folks confirm 4k@60Hz with high-end 15'' Haswell rMBP on Dell UP2414Q: https://discussions.apple.com/message/25098487#25098487 … What is your monitor?
Khaos Tian ‏@KhaosT 8 Mar 2014 Santa Clara, CA

@NadithRahman UP2414Q + High-end 15” Haswell. If I disable 750M, there won’t have any output on external monitor(a black screen)
mg428 ‏@NadithRahman 9 Mar 2014

@KhaosT Exactly same monitor and rMBP configuration but no 4k@60Hz on your setup but people are getting 60Hz. How come?? Any idea as to why?
Khaos Tian ‏@KhaosT 9 Mar 2014 Santa Clara, CA

@NadithRahman Are you sure they actually get 60Hz? Initially I thought it’s 60Hz on rMBP but later I feel it’s still 30Hz
mg428 ‏@NadithRahman 9 Mar 2014

@KhaosT He says "Good news everything works w/ 10.9.3.That is 3840x2160@60Hz using a display port cable+I get to choose a scaled resolution
mg428 ‏@NadithRahman 9 Mar 2014

@KhaosT (3840x2160, 3200x1800, 2560x1440, 1920x1080 or 1280x720)... I only have a Dell UP2414Q to test with...Mine is a late 2013 MBP 750M."
Khaos Tian ‏@KhaosT 9 Mar 2014 Santa Clara, CA

@NadithRahman The thing is 10.9.3 removes the option to select refresh rate(on 30Hz) so I cannot find a way to know the actual rate
mg428 ‏@NadithRahman 9 Mar 2014

@KhaosT Snapshot from a Asus 4k monitor:https://www.dropbox.com/s/x5aol4fe6vjzcqq/2014-03-06%2017.56.32.jpg … Apparently there is a status/info option/button on the monitor. Do you have?

‏@KhaosT

@NadithRahman Both rMBP and nMP says 60Hz (Pic MP) but it feels different so here is a slow-mo http://youtu.be/ZxaTEq4ANb8 pic.twitter.com/CwLdih82Y3

11:48 AM - 9 Mar 2014

Santa Clara, CA

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