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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

Jun 28, 2015 5:08 AM in response to mg428

I don't have your answer, but you are discussing orthogonal issues. The 10x improvement in graphics is how fast the computer can draw to the screen buffer. The 4K 60Hz issue is how fast the port protocol allows the finished screen to be transferred to the device. The main hope of the 10x is that IF your computer can support a 4K display, then it will also be usable at that resolution - for example, you won't see lagging window drags, window scrolls, etc.


As an example, all our 2010 Macs support 2,560 displays, but the GPUs aren't really up to it. Only in the best circumstances can we, say, watch a video at that resolution, and I often have to drop it down to 1,280 x 800 depending on what I'm doing.

Jun 28, 2015 9:29 AM in response to jdiamond

Thank you, jdiamond. The thing is, the computers subject to my questions can theoretically do 4k 60Hz, but Apple does not allow it on OS X, hence my question is they would enable it in El Capitan. Let me elaborate:


The 13'' Haswell (late 2013 and mid-2014) rMBPs which have Iris 5100 GPU can do 4k 60Hz on Windows. However they cannot do it on OS X. The fact that 4k 60 Hz is possible on Windows means that OS X can theoretically do it as well. Perhaps Apple thought that 4k 60Hz would not perform well on these computers and hence opted out this feature on OS X. Now with this 10x performance improvement in graphics I thought that Apple may enable this feature in El Capitan.


What do you think?

Oct 3, 2015 3:33 AM in response to mg428

Guys,


Has there been a change with the final release of El Capitan? Can the Iris 5100 of 13'' Haswell rMBPs can now do 4k 60Hz?


The Metal engine of this El Capitan may have enabled 60Hz refresh rate with 4K resolution due to its performance bump. For example, Arstechnica tested some GPUs including Iris Pro 5200 which saw a 53% performance boost. While he did not test non-Pro Iris 5100, its boost may be sufficient for Apple to now tweak its software to enable 4k 60Hz.


http://arstechnica.com/apple/2015/10/metal-performance-in-os-x-el-capitan-someti mes-great-often-mixed/


I will really appreciate if a late 2013 or mid-2014 13'' Haswell rMBP owner who happen to own a 4k 60Hz gives a try.

Oct 22, 2015 4:45 AM in response to MacPlus87

Hi Guys,

I was following this conversation for quite a while. After purchasing a 4k monitor now, I can confirm:

Macbook Pro 15" (Late 2013) with NVIDIA 750m running the latest El Capitan is working at 3840 x 2160 @ 60Hz with my Asus PB279 Monitor through Mini DisplayPort.


And HiDPI scaling works as well in the OS Settings. Jay!

Nov 13, 2015 6:18 AM in response to FaisalZ

@FaisalZ How did you get it to output 4k @ 6Hz?


I have the Dell P2715Q connected from the mDP on my late 2013 rMBP to full DP port on the monitor with cable supplied with the monitor and it only outputs 30Hz to a single screen in Mac OS X El Capitan.


And even with SwitchResX, the best resolution that appears to be supported is 3840 x 2160, 30Hz.


The HiDPI scaling works great, though, but the refresh rate is so horrible, I'm finding myself wanting to use the main laptop screen!


Also worth noting, the second monitor downstream won't display at all, but when I connect a Lenovo laptop running Windows 10 it works fine. The main display is still only running at 30Hz, though, even in Windows.

Nov 14, 2015 10:21 AM in response to cpaleshus

Hi,

the two things I needed to do are:

1.
Get a decent mDP to mDP cable that supports Multistream (MST) and DP 1.2 (the Asus PB279 has a mDP port)

I got mine from "Cable Matters" on Amazon

(BTW an original Apple Thunderbolt cable did not give me any image)

2.

I needed to set the "DisplayPort Stream" in the monitor settings to "1.2".


Then it worked fluently.

Does your rMBP have the Nvidia 750m inside?

Nov 19, 2015 5:01 AM in response to MacPlus87

Hi there!


Thanks for sharing all of your experiences. I have read the whole thread before buying my new monitor and I can confirm that the Dell P2715Q monitor is working perfectly on my MacBook Pro (Retina, 15-inch, Late 2013) with Intel Iris Pro 1536 MB graphics. It is displaying at a resolution of 3840 x 2160 at 60 Hz. It is connected with the supplied cable DP to mDP inserted in one of the Thunderbolt 2 ports.


Thanks!

Nov 24, 2015 4:23 PM in response to mg428

I can't speak for certain on the 13" MacBook Pro, but I have the 15" MacBook Pro Retina (late 2013).

I now have 2 Dell P2715Q 4k monitors and they both run in full 4k resolution at 60hz when connected to my MacBook Pro. I didn't notice the fans coming on any more than normal with the monitors plugged in. The fans still come on normally and frequently when using Parallels, though.


They are fantastic monitors! To make it work, I have to make sure that each monitor has MST mode turned off. And I have to connect them both directly to the display ports. So I have no more display ports available, since the MacBook only comes with two.


I tried to daisy chain them, but it isn't possible from the Mac. As an aside, I do have them daisy chained when connected to a Lenovo ThinkPad w540 that only has one DP port. To get 4k resolution that way, I have to run them both at 30hz which is awful for daily use. So instead, I run them both at 2560x1440 @ 60hz. The Dell monitors actually look very good at that resolution -- just a little soft, but definitely acceptable.

Dec 27, 2015 12:56 PM in response to MacPlus87

I'm stuck in 30Hz laggy land...

How do you enable 4K @ 60Hz on a Late 2013 Retina Macbook Pro, running El Capitan?

I'm getting the full 2160p resolution and everything is nice and sharp, but I'm stuck at 30Hz, so things don't have that nice smooth motion we all love on our Macs.

I saw a MiniDisplayPort 1.2 to HDMI 2.0 active adapter from Club 3D... do those work, or is there some software workaround?

Mac:
MacBook Pro (Retina, 15-inch, Late 2013)
2.3 GHz Intel Core i7
16 GB 1600 MHz DDR3
NVIDIA GeForce GT 750M 2048 MB

Screen:
4K Vizio M43-C1
(using input 5, which does 4K @ 60Hz)

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

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