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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

Apr 9, 2014 6:00 AM in response to johnniecache

Dear forumites:


As a non-tech savvy person and pehaps becuse of not being a native English speaker, I could not understand what that guy actually means with his statement "

"(In Bootcamp 13'' Haswell rMBP) shows the monitor as 2 monitors running in portrait. Other than this, it works @ 60hz".


Please kindly comment on nuances of the 4k 60Hz output on bootcamp of the Haswell rMBP 15'' with Nvidia 750M and Haswell rMBP 13'' with Iris. I wonder whether the end result (what I would see on the monitor) be the same or not.

Apr 9, 2014 2:14 PM in response to mg428

What this simply means is that Intel drivers for Windows don't support merging 2 MST tiles into 1. This is necessary for all MST based DP 1.2 monitors to create a single screen. This is akin to "eyefinity" for AMD drivers/control panels, or NVidia Surround. Apple's recent drivers simply have this automatically built in. If they had chose to they could have allowed MST monitors to display 2 tiles similar to what is described above. Note that all 4k monitors produced so far are MST and thus this has been a common low-level issue that has to be managed by the graphics driver.


So the good news is that I would think that Apple/Intel could modify their drivers to merge the two tiles into 1 @ 60hz. If they choose to put the effort into it of course, and unless there is some low-level limitation in the intel GPU preventing this ... but again, this seems to be a driver issue based on recent history with AMD and NVidia. The driver needs to specifically merge the 2 tiles so that the user only sees 1.

May 4, 2014 4:08 PM in response to nquery

Hope for 4k 60Hz on low-end 15'' rMBP?


According to the below link which includes the release notes of the beta 10.9.3 13D57 build, 10.9.3 provides "improved 4K display support on .... MacBook Pro with 15-inch Retina display (Late 2013)".


http://9to5mac.com/2014/05/01/os-x-mavericks-10-9-3-release-nears-with-bolstered -4k-display-support/


As you would remember, the high-end 15'' late 2013 rMBP with Nvidia 750M can do 4k @ 60Hz on Mavericks by virtue of the 10.9.3. This release note gives some hope to the owners of low-end late 2013 15'' rMBP with Iris Pro because the release note seems to be written down in a way that it encompasses all late 2013 15'' rMBPs, i.e. both low-end and high-end models with integrated Iris Pro and discrete Nvidia 750M GPU. In short, low-end late 2013 15'' rMBP with Iris Pro may do 4k @ 60Hz once the 10.9.3 final version is released. At this point late 2013 13'' rMBP with Iris has not been provided with such support. In other words, no 4k @ 60Hz on Mavericks with late 2013 13'' rMBP for the time being. Hopefully some day, perhaps with the 10.9.4, it will do it. Because it has been proved that it can do it on Windows. Therefore it can do it on Mavericks as well with the necessary driver.

May 17, 2014 3:25 AM in response to John Mallery

The following article claims that the samsung U28D590D works with the MBP Retina with the NVIDIA 750 graphics unit, but has some issues with other computers and configurations. In particular, the displays’s use of a single-stream DisplayPort connection, compared to the multi-stream connection hack required by first generation 4K displays to reach 60Hz, seems to produce glitches under 10.9.3.

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A Look at the 4K Display Improvements, and Remaining Flaws, in OS X 10.9.3


http://www.tekrevue.com/os-x-10-9-3-4k-displays/

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

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