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Does the new Macbook Pro 15" (late 2013) supports 4K via Thunderbolt/Displayport?

I understand that the new Macbook Pro 15" (late 2013 with Nvidia) supports 4K screen resolutions via HDMI at low hertz. But does it support 4K via Thunderbolt/Displayport? I read on Intel's web that the NVIDIA GeForce GT 750M with 2GB memory in theory can support it. Would be important as a range of new 4K 32" monitors will come out over the next year. Would be great for photo, video editing etc.

MacBook Pro with Retina display, OS X Mavericks (10.9)

Posted on Oct 24, 2013 2:48 AM

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Posted on Oct 26, 2013 10:30 AM

I also am very confused by this because per apple's support page it only supports 4K via HDMI at 30Hz but SHOULD support 60Hz via a mini display port 1.2 specification built into thunderbolt 2.


However, I think it does include 60Hz support (although not mentioned on apple's website). My evidence of this is that on the ifixit teardown they found a an Intel DSL 5520 Thunderbolt 2 controller which according to Intel's and Wikipedia's website is falcon ridge which means it should support Display port 1.2 natively. Plus, on apple's thunderbolt page they specifically mention connecting a 4K display to a macbook pro through the thunderbolt port (not which is suggested by the support page listed above):


"Now with Thunderbolt 2 built into the new Mac Pro and MacBook Pro with Retina display, you can connect the latest 4K desktop displays and get double the bandwidth for your peripherals. And the two generations of Thunderbolt technology are compatible with each other."



Also, the Apple mini displayport support page has not been updated since 2012 but I believe it is just showing old information


The BIG piece of evidence against the new macbook pro's supporting 4K through the thunderbolt port is that on apple's tech specs page they specifically mention 4K under the HDMI section but make no mention of it under the thunderbolt 2 section.

312 replies

Feb 11, 2014 2:51 PM in response to MacPlus87

imagine apple would provide MST support now, there is another problem that i didnt even think of. Somebody wrote about it in another thread here.


The new Dell 4k 24" has a resolution of about 200ppi, which is already close to apple's retina macbooks. At this resolution, you will definitely need the "Retina Dsiplay Setting" (larger buttons, text, etc. on the GUI and Apps)


However, if the display is not recognized as a "Retina Display", the Retina Setting will not be available! So even with that driver, third party high resolution displays (>=200ppi) will not work with OS X. Only hope is a new apple branded thunderbolt 4k display.


P.S. does soembody know how displays are recognized as "Retina"? Is it EDID? Could there be an override similar to this?

Feb 11, 2014 3:02 PM in response to johnniecache

johnniecache wrote:


imagine apple would provide MST support now, there is another problem that i didnt even think of. Somebody wrote about it in another thread here.


The new Dell 4k 24" has a resolution of about 200ppi, which is already close to apple's retina macbooks. At this resolution, you will definitely need the "Retina Dsiplay Setting" (larger buttons, text, etc. on the GUI and Apps)


However, if the display is not recognized as a "Retina Display", the Retina Setting will not be available! So even with that driver, third party high resolution displays (>=200ppi) will not work with OS X. Only hope is a new apple branded thunderbolt 4k display.


P.S. does soembody know how displays are recognized as "Retina"? Is it EDID? Could there be an override similar to this?


..exactly, so if you don't mind looking at microscopic text and gui etc..4K is pointless without the proper scaling.


I've completely given up on the 4K idea, but am waiting patiently for a Thunderbolt "2" Display (TD) update.


I and many of my coleagues though cannot justify spending hard earned money on hardware that has dated quite considerably.

The current iteration of the TD needs port updates (USB 3.0 & Thunderbolt 2) as well as a "full lamination" screen which Apple says has 75% less reflection.


The current iMac has USB 3.0 and a full lamination screen, I don't understand what is so difficult about shifting focusing to a product that is now three (3) years old, it's a dinosaur....it's a bit embarrassing.


Come on Apple, please! people are waiting!

Feb 11, 2014 3:09 PM in response to PaintingStar

PaintingStar wrote:


I've completely given up on the 4K idea, but am waiting patiently for a Thunderbolt "2" Display (TD) update.

Well, mission accomplished?


And no wonder the TD has not been updated, even with the iMac features it will still be a dinosaur standing next to a retina MBP.


Actually even 4k is not enough, it needs to be at least 5k to be a proper retina 27" display. So it will take time, I am guessing late 2014.

Feb 11, 2014 3:26 PM in response to johnniecache

johnniecache wrote:


PaintingStar wrote:


I've completely given up on the 4K idea, but am waiting patiently for a Thunderbolt "2" Display (TD) update.

Well, mission accomplished?


And no wonder the TD has not been updated, even with the iMac features it will still be a dinosaur standing next to a retina MBP.


Actually even 4k is not enough, it needs to be at least 5k to be a proper retina 27" display. So it will take time, I am guessing late 2014.


Otherwise, I may go for something like this:


LG-29UM95


http://www.lg.com/be_fr/moniteurs/lg-29UM95-ips-monitor

Feb 12, 2014 12:20 AM in response to Niklas1337

Niklas1337 wrote:


It is Mac Pro with Dell 4k Display. He installed a tweak or whatever and the text and GUI are quite nice!

1920x1080 HiDPi on 31.5" is not quite nice ;-)


Apple does have the technology since 2012, you can use scaled resolutions on your macbook pro retina. unfortunately no signs of MST Support and more variable hidpi modes on latest beta 5 of 10.9.2

😐

Feb 12, 2014 1:00 AM in response to johnniecache

johnniecache wrote:


the "scaled resolution" is not a solution to this problem! It would be insane to buy a 4k display and run it in 1080p scaled mode.


The only possibility would be to force the "Retina Display Setting", which has a larger (not scaled!) GUI. Maybe this is possible through an EDID hack.

i did mean HiDPi Modes, these are also (kind of) scaled. Example:


HiDPi on 2560x1440@3860x2160 means:

rendering on 5180x2880 (@2x) and downscaling to 3860x2160

Feb 12, 2014 2:59 AM in response to jksdfjk

do you have some more informaion on this?


Apple says that the Retina GUI is not scaled:

Scaled resolutions do not offer the same visual quality as the Retina setting. Scaled resolutions may also impact graphics performance depending on which applications you are using.


i believe that the retina gui is simply natively twice the size of the normal gui. Also modern websites would load content like images and backgrounds @2x the size when a retina display is found (pixel-device-ratio). With the retina setting its not scaled, only on a scaled resolution setting it will be scaled down again (smaller)

Feb 12, 2014 4:14 AM in response to johnniecache

johnniecache wrote:


i believe that the retina gui is simply natively twice the size of the normal gui. Also modern websites would load content like images and backgrounds @2x the size when a retina display is found (pixel-device-ratio). With the retina setting its not scaled, only on a scaled resolution setting it will be scaled down again (smaller)


absolutely right.


"retina" Mode is ok on a Macbook with 221ppi, or e.g. on a Dell UP2414Q

But on a 31.5" with Ultra HD you usually want to use scaled modes.


for me, (virtual) 2560x1440 HiDPi is absolutely usable on a 31.5" Ultra HD desktop monitor. That would be a pixel-device-ratio of 1.5

Feb 12, 2014 5:24 AM in response to DannyWoods

4K will always have the dilemma of tiny text vs more desktop space and the compromise either way is not optimal. On the other hand, the newly announced ultrawide screens like the LG 29UM95 (3440x1440) seems to be a better compromise for Mac since it's not too big physically, not too small, text will not be too tiny and still you can get extended desktop space and 129 PPI (compared to 109 PPI of current Thunderbolt display), which becomes retina equivalent at 27 inches distance (an ideal distance for most people).


In fact, I think that Apple may rather release an update to the Thunderbolt display with exactly the same size and resolution as the LG29UM95.

Feb 12, 2014 5:39 AM in response to MacPlus87

Having a retina mbp, i personally don't want any display below 200ppi any more. I believe apple has solved this very well with the retina gui, only that it brings us back to the real estate problem on small displays.


Actually i think that the solution would be 300ppi for the small 13" and 15" displays and 220ppi would be perfect for 27", 30" and 32". This is the way to go. I also understand that apple cant put this on the market before prices have settled for such panels. (around 1k EUR i guess)


Big question remains if ever there will be support for the 2013 MBPr's

Does the new Macbook Pro 15" (late 2013) supports 4K via Thunderbolt/Displayport?

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