4K @ 60hz for MacBook Pro 2016

BiteSizeThumb

macrumors member
Original poster
Nov 28, 2016
49
22
I have a Samsung U28D590 display that is 4K, however there are only 2 HDMI and 1 DisplayPort. How abouts can I get full 4K at 60hz out of my MacBook Pro 2016? The multimedia adapter only puts out 30hz which is awful. What adapters do I need? Any recommendations?
 

Brookzy

macrumors 601
May 30, 2010
4,747
4,723
UK
I was under the impression that software might have been the problem that's holding it back to 30hz. Can someone confirm this?
On some adapters you must hold the option key whilst selecting a resolution to get 60Hz, but adapters such as the one I linked do support 4K 60Hz.

(Adapters like the Apple Multiport do not support 60Hz because they also contain a USB 3 port. USB-C only has enough bandwidth for 4K@60Hz and USB 2.)
 

BiteSizeThumb

macrumors member
Original poster
Nov 28, 2016
49
22
On some adapters you must hold the option key whilst selecting a resolution to get 60Hz, but adapters such as the one I linked do support 4K 60Hz.

(Adapters like the Apple Multiport do not support 60Hz because they also contain a USB 3 port. USB-C only has enough bandwidth for 4K@60Hz and USB 2.)
Thank you for the clarification. I'll have to look into those cables (in Canada) as there aren't much USB-C to HDMI options, or DisplayPort.
 

DanDilla

macrumors member
Nov 15, 2016
70
12
Lüneburg, Germany
I would recommend you to buy a USB-C to Displayport cable like this (https://www.amazon.de/StarTech-DisplayPort-Adapter-Chromebook-Pixel-Schwarz/dp/B01E9RTEI8/ref=sr_1_1?ie=UTF8&qid=1486249201&sr=8-1&keywords=usb+c+displayport+kabel) or a USB-C to Displayport adapter (https://www.amazon.de/Club-3D-DisplayPort-Aktiver-Adapter/dp/B019070UK8/ref=sr_1_3?ie=UTF8&qid=1486249179&sr=8-3&keywords=usb+c+displayport) and use a normal DP cable.

There are 2 points because of which I wouldn't recommend you to go the HDMI route.

1) In the first review I found on your Monitor it says there's no HDMI 2.0, so only 30hz 4k over HDMI...

2) USB-C doesn't support HDMI 2.0 so these are always "active" adapters which use the Displayport Alt-Mode and convert the Displayport signal to HDMI.

F your Display should support HDMI 2.0, I wouldn't recommend to use it, you would have to use the alternative Mode translation Route with eiither - if you're lucke - the 4k60 in the "option" resolutions or you will have to get the timing of your Display from the EDID and set it right with SwitchResX (with the Club3d USB-C toHDMI 2.0 one).

Or you buy a Displayport cable and get 4k60 as a native resolution without hassle...
 
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BiteSizeThumb

macrumors member
Original poster
Nov 28, 2016
49
22
I would recommend you to buy a USB-C to Displayport cable like this (https://www.amazon.de/StarTech-DisplayPort-Adapter-Chromebook-Pixel-Schwarz/dp/B01E9RTEI8/ref=sr_1_1?ie=UTF8&qid=1486249201&sr=8-1&keywords=usb+c+displayport+kabel) or a USB-C to Displayport adapter (https://www.amazon.de/Club-3D-DisplayPort-Aktiver-Adapter/dp/B019070UK8/ref=sr_1_3?ie=UTF8&qid=1486249179&sr=8-3&keywords=usb+c+displayport) and use a normal DP cable.

There are 2 points because of which I wouldn't recommend you to go the HDMI route.

1) In the first review I found on your Monitor it says there's no HDMI 2.0, so only 30hz 4k over HDMI...

2) USB-C doesn't support HDMI 2.0 so these are always "active" adapters which use the Displayport Alt-Mode and convert the Displayport signal to HDMI.

F your Display should support HDMI 2.0, I wouldn't recommend to use it, you would have to use the alternative Mode translation Route with eiither - if you're lucke - the 4k60 in the "option" resolutions or you will have to get the timing of your Display from the EDID and set it right with SwitchResX (with the Club3d USB-C toHDMI 2.0 one).

Or you buy a Displayport cable and get 4k60 as a native resolution without hassle...
Thank you for the recommendations. I went ahead and ordered the USB-C to DisplayPort Adaptor. The reviews are kind of iffy (as they for some reason say HDMI... and majority of the people are connecting it to a TV) but I'll see what happens, and I have Amazon Prime so worst case I return it.

Thanks guys!
 

MacUser_101

macrumors newbie
Jan 25, 2017
1
0
Thank you for the recommendations. I went ahead and ordered the USB-C to DisplayPort Adaptor. The reviews are kind of iffy (as they for some reason say HDMI... and majority of the people are connecting it to a TV) but I'll see what happens, and I have Amazon Prime so worst case I return it.

Thanks guys!
What was the outcome of this? Did it work? I have the same issue as you have and I'm interested to know what happened with your solution.