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

but thats exactly what the post says, no?

"The next factor is whether your GPU can drive that many pixels, and I want to say that for most Macs going back as far as 2008, it actually can"

Sure, drivers must be ready too, but they seem to be on the way, right?

There are now reports of users getting flicker free smooth cursor movement at 60Hz on a Dell UP2414Q 4k with today's release. And this is with an older mac pro with a GTX760 card. Hopefully other users can chime in but things are looking very promising. I think the Dell UP2414Q is the sweet spot for 4k right now - true 2x 'retina' display at the right dot pitch ... anything larger will have text too large or will require a fractional scaling mode.

Khaos Tian has confirmed that "rMBP feels much smoother on 13D17 than 13D12. However, it seems there are some rendering issues https://dl.dropboxusercontent.com/s/o33ixa78k7hdhzd/screen-shot-2014-03-14-at-11 -04-53-am-2-.png"

So it seems it is getting better and will be totally usable when the final build of 10.9.3 is released, at least for high-end 15'' Haswell rMBP owners with 750M gpu. Still no news regarding or feedback from Iris and Iris Pro owners on 4k @ 60 Hz capability.

I just ordered the Dell 24 inch 4k, I'm hoping for 60hz best for retina scaling. We shall see.

tomengland wrote:

I just ordered the Dell 24 inch 4k, I'm hoping for 60hz best for retina scaling. We shall see.

Which exact rMBP do you have?

My Dell UP2414Q arrived yesterday and after struggling to get Display Port to work (had to be set to 1.2 on the monitor ... see below), I I have 4k @ 60hz with scaling running on my rMBP 15" with 750m gpu. As noted by Twitter user Khaos, the only issue I have is that there are video artifacts on the far right side of the screen - the frequency of which increases with higher scaling (it doesn't occur in native res nor on largest font scaling) and when moving windows around quickly. If you move them slowly there are no artifacts. This would appears to be an issue with the OS HiDPI/driver code that I am sure will get resolved. Once on DP 1.2 I have had no sleep/wake issues or any other functional issues - it's works perfectly except for the rendering/artifacts issue.

I don't know if the Intel graphics only (low end 15") will run it - if someone can let me know how to disable the 750m gpu then I could test it out. (display control panel has either auto-switching or dedicated gpu only, there is no integrated only).

If you do set this up with a high-end 15" rMBP and get no picture on initial plugin, you can turn on DP 1.2 on the monitor by *holding down* the menu button on display port for 8 seconds - then you will get an OSD question to enable DP 1.2. I initially didn't know this and eventually had to plug in my wife's MBA in order to get the monitor to detect a DP connection of any sort, at which point I could set it to 1.2. I didn't catch the above method until fully reading the Dell user manual.

I just ran the following test:

1. System Info and/or gfxCardStatus with just my rMBP LCD running - the Color LCD is being driven by the Intel Iris Pro.

2. Turn on Dell UP2414Q and System Info/gfxCardStatus show that both the Color LCD and Dell are now being driven by the GT 750M.

I tried forcing the machine to integrated only using gfxCardStatus but it doesn't allow this while an external monitor is running.

I just had static browser windows and such open ... so I am guessing that one *cannot* run 4k @ 60Hz from the models with Integrated graphics only ... including both 13" Iris and 15" Iris Pro. Glad I bought the high-end 15". But there is still a small possibility as I haven't been able to force the machine into integrated only and prevent it from auto-switching to the dedicated gpu.

Scary!

I'm hoping it will work by the time 10.9.3 is finalized only because if Windows can do it I'm not sure why OSX can't.

I have the Iris gpu which according to the tech specs, it supports 4k at 60hz over DP 1.2. Which is why it works well on Windows 8.1 but let's see if Apple enables it. My monitor doesn't ship until 4/14.

Actually monitor delivers tomorrow.

I have 13 inch retina macbook pro haswell Iris.

tomengland wrote:

I have the Iris gpu which according to the tech specs, it supports 4k at 60hz over DP 1.2.

I think this is contentious because there are conflicting Intel documentation in this regard.

tomengland wrote:

Which is why it works well on Windows 8.1 but let's see if Apple enables it.

Have you seen this in person? So far there is no single person, in this thread or elsewhere, has confirmed that they can get 4k @ 60Hz on his Haswell 13'' rMBP with Iris or Haswell low-end 15'' rMBP with Iris Pro via Windows, Such confirmation has only been made by high-end Haswell 15'' rMBP owners with Nvidia 750M.

One update on my new Dell UP2414Q monitor. The issue with video/display artifacts has completely disappeared in the past couple of hours. I am not sure what I did but it may have to do with moving the primary menu bar around in the display preferences (the Dell is curently the primary display). Regardless, the monitor is now functioning perfectly without a single issue in 1920x1080 Retina mode (in 4k @ 60hz of course)! I will try and replicate whatever I did to resolve this and keep the thread posted.

mg428 wrote:

Have you seen this in person? So far there is no single person, in this thread or elsewhere, has confirmed that they can get 4k @ 60Hz on his Haswell 13'' rMBP with Iris or Haswell low-end 15'' rMBP with Iris Pro via Windows, Such confirmation has only been made by high-end Haswell 15'' rMBP owners with Nvidia 750M.

What I find really amazing is that I cannot find a single reference via google to any windows systems running Iris or Iris Pro and trying 4k (30hz or 60hz). There are some windows laptops that use the chipset (vizio and dell for example). You would think that someone has tried to run 4k @ 60hz from one of them ... (there are plenty of reports of people trying via AMD and Nvidia)

nquery wrote:

mg428 wrote:

Have you seen this in person? So far there is no single person, in this thread or elsewhere, has confirmed that they can get 4k @ 60Hz on his Haswell 13'' rMBP with Iris or Haswell low-end 15'' rMBP with Iris Pro via Windows, Such confirmation has only been made by high-end Haswell 15'' rMBP owners with Nvidia 750M.

What I find really amazing is that I cannot find a single reference via google to any windows systems running Iris or Iris Pro and trying 4k (30hz or 60hz). There are some windows laptops that use the chipset (vizio and dell for example). You would think that someone has tried to run 4k @ 60hz from one of them ... (there are plenty of reports of people trying via AMD and Nvidia)

Even though I did not state this in my post, I was well aware of your point because my Google searches had not yielded anything. Perhaps owners of those PCs are not interested in 4k @ 60Hz or 4k at all given how expensive those monitors are.

Hopefully tomengland will provide a positive feedback today regarding Haswell 13-inch rMBP's 4k 60Hz capability in which case we can safely assume low-end Haswell 15-inch rMBP would be capable as well-- if Iris can do Iris Pro should be able to. This may lead PC owners to demand driver updates if they cannot get the same capability on their computers.

Yep, I'll test it tonight when I get home and update this post.

I tried searching as well, it doesn't seem widespread, Intel's official site just states it's up to the manufacture to determine the max resolutions due to the various variables involved with bringing 4k and the various hz configurations.

I'm hopeful because if it can drive the 4k at 30hz, then MST should bring it to 60hz. I don't have a good understanding if MST is demanding, but from what I hear it's like running 2 screens at 1920 x 1080 at 60hz or something.

You have to admit that it's fairly unlikely that the kind of person who would pay so much for an early 4K monitor would buy a computer system with no GPU, or have a reason to try to disable their GPU. Even now, with Intel's integrated graphics being OK, I'd be squeemish to risk a no-GPU system. Even on the laptop I carry around all the time.