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Level 1

7 points

4k at 60Hz Via Displayport on Late 2014 Mac Mini

The tech specs aren't very clear about the new Mac Mini's 4k support.

Via HDMI, 4096x2160 resolution is supported at 24Hz or 30Hz. I understand that.

But what about the Thunderbolt/Mini DisplayPort? Technically, shouldn't that allow 4096x2160 at 60Hz via DisplayPort 1.2? As far as I can tell, from looking at the Intel Iris 5000 spec page on the intel site, the video card can drive a 4k display at 60Hz. So the hardware seems to all support it, so far as I can tell. But the tech specs page lists "Support for up to two displays at 2560 by 1600 pixels, both at millions of colors" for the Displayport.

Does anyone know for sure what level of support (30Hz or 60Hz) can be achieved using the DisplayPort?

Thanks!

4k, mini displayport 1.2

Posted on Oct 17, 2014 11:05 PM

22 replies

lllaass

Level 10

210,417 points

Aug 9, 2015 1:55 AM in response to rodr1go

I am replying to this post and he says he has a Retnia MacBook Pro, not a Mac Mini

LordHypnosAug 8, 2015 9:25 PM Re: 4k at 60Hz Via Displayport on Late 2014 Mac Mini
Re: 4k at 60Hz Via Displayport on Late 2014 Mac Miniin response to rodr1go

rodr1go, Any success on that attempt? We have a rMBP and a P2715Q with the vendor cable that should support this, and thus far we're seeing 30hz.

rodr1go wrote:

mac mini will not run @60Hz and that is specified in the apples 4K support page.

rodredux

Level 1

8 points

Aug 20, 2015 8:34 AM in response to EmersonNYC

Somehow got 4k running at 46 hz on my 2014 Mac Mini. :-)

Don't ask me how. Fooling around with SwitchResX...

rodredux

Level 1

8 points

Aug 20, 2015 8:41 AM in response to rodredux

Not stable... :-(

When switching between non-retina and retina 1080p modes, screen went black and computer froze.

Cleider

Level 1

4 points

Oct 2, 2016 1:46 PM in response to BLee915

Its is true. I tried use a Philips Monitor 4k. I Tested the hdmi cable and a thunderbolt to displayport adapter and it only works in 30hz.

prodevro

Level 1

12 points

Oct 21, 2016 1:05 AM in response to Cleider

WORKS with 4k samsung monitor and mini dp - dp cable

with HDMI i only get 30hz on 3840x2160 and 60hz only for 2560x1440, i switched to mini display port - displayport inserted in thunderbolt slot, now i only get a max resolution of 2560x1440 but is on 60hz, all other resolutions, lower ones are also on 60hz, in game resolution shows 60hz now.

Uhopjim

Level 1

8 points

Oct 30, 2016 10:10 PM in response to EmersonNYC

There is a work around if you use a Monitor that has PIP/PBP Mode. Connect two cables two it. This will make Mini think it has two displays connected to it. at 960 x 1080 HiDPI or 1920 x 2160 at 60hz. Windows can be fit across both Desktops giving 4k at 60hz. I currently use Display Port and HDMI but I think 2 x Display port would be better.

This proves that it is not a graphics card limitation. Would multiple cable lower the stress on the graphics card I doubt it still one card doing the same work.

UTChris

Level 1

9 points

Jul 11, 2017 7:47 AM in response to Alaska99801

I'd like to know the answer to this as well.

4k at 60Hz Via Displayport on Late 2014 Mac Mini