It's 2018 and still no 4k monitor with 120hz or 144hz support?

[Och]

It seems that current GPUs and monitors are limited by HDMI 2.0a/b and DP 1.4 standards. HDMI 2.1 has been out since 2017 but no GPU or monitor supports it!

[Mangler]

Any of y'all bough a Acer Nitro XV273K?

Looks like it is the same panel as those expensive gsync 4k 144hz HDR monitors, but with freesync and a cheaper HDR implementation that seems to be pretty garbage.


Going by the reviews the monitor itself seems to be pretty good if you can overlook the fact that the HDR implementation is flawed.

[KAC]

Link us Mangler!

[Och]

So its 2020 and I have not been following monitor trends. Have there been any developments?

Still looking for a monitor that can display 4k @ 120hz with no compression, and preferably 4k @ 120hz with 10 bit color and no compression.

[Riptide]

Some TVs have the capability via HDMI 2.1. LG C9 for example. Cables are also out that support the higher bandwidth requirement.

No GPU supports 4k120 currently.

[Och]

Some TVs have the capability via HDMI 2.1. LG C9 for example. Cables are also out that support the higher bandwidth requirement.

No GPU supports 4k120 currently.

I understand HDMI 2.1 supports variable refresh rate out of the box. I'm a bit rusty on this - is this a whole new standard that renders Gsync and Freesync obsolete?

[Riptide]

I don't think it renders them obsolete. It is possible to support gsync or freesync if the TV has VRR support. To do so requires software support from the vendor.

The LG C9 has gsync support currently. Per the current HDMI 2.0 bandwidth limitations in the existing GPUs available, it can do 1440p/120 and 4k/60 gsync.

When we get HDMI 2.1 support available in GPUs, theoretically, the TV should be able to handle 4k120.

[Och]

And its almost time for a yearly update to this thread, albeit very early this year, but its 2020 and I am running out of patience.

I understand newest RTX30 series cards support HDMI 2.1 and DP1.4a standards. I also understand HDMI 2.1 is now superior to DP1.4a, at least until DP2.0 launches. However I see that video cards still seem to prioritize DP over HDMI, for instance my new RTX3080 has more DP ports than HDMI ports.

Are there any monitors out that can do 4k@120 and 10bit color with no compression?

[Och]

Also, why the hell are they trying to push 144hz over 120hz? What will 144hz do to all the videos that are shot at 30 or 60fps?

[Nunz]

Nothing? Refresh rate and framerate are two separate things.

[Trunks0]

Nothing? Refresh rate and framerate are two separate things.

Plus the display can just change it's Hz rate in situations where it matters.

I don't think it renders them obsolete. It is possible to support gsync or freesync if the TV has VRR support. To do so requires software support from the vendor.

The LG C9 has gsync support currently. Per the current HDMI 2.0 bandwidth limitations in the existing GPUs available, it can do 1440p/120 and 4k/60 gsync.

When we get HDMI 2.1 support available in GPUs, theoretically, the TV should be able to handle 4k120.

Using CRU you can enable Freesync to work as well on the C9.

[Och]

Nothing? Refresh rate and framerate are two separate things.

Yes, but unless frame rate divides equally into frame rate, you get issues?

[hazindu]

What I'd really like from 2160p monitors is preset custom interpolation for common gaming resolutions like 1080p and 1440p so that you can enjoy the benefits of working with high desktop realistate, but game at a lower resolution without a huge loss is sharpness.

[demo]

Yes, but unless frame rate divides equally into frame rate, you get issues?

You can change your refresh rate. Leave it at 120hz if you want.

[Roadhog]

Also, why the hell are they trying to push 144hz over 120hz? What will 144hz do to all the videos that are shot at 30 or 60fps?

Nothing? Have you not watched a movie or any other content that is 24fps?

[demo]

Well he's right in that there is stutter with 30 or 60fps video content at 144hz. But 120hz is good for 24, 30, and 60fps content.

[Roadhog]

Well he's right in that there is stutter with 30 or 60fps video content at 144hz. But 120hz is good for 24, 30, and 60fps content.

No. I think that was an issue nvidia fixed over a year ago. No stuttering here at all playing back 60fps video at 144hz.

[demo]

It doesn't sync. There is judder.

[Roadhog]

It doesn't sync. There is judder.

Well, I guess the lack of judder I'm seeing must be a lie.

[Trunks0]

Well, I guess the lack of judder I'm seeing must be a lie.

It can be pretty subtle, but unless a given video player has compensation it should be there. So if you watch 60fps content for instance on YouTube, that video will be smoother if you set your Hz to 120 or 60 than it will be if your set to 144hz.

[GTwannabe]

It can be pretty subtle, but unless a given video player has compensation it should be there. So if you watch 60fps content for instance on YouTube, that video will be smoother if you set your Hz to 120 or 60 than it will be if your set to 144hz.

That's not how adaptive sync panels work.

[Trunks0]

good point. I've never thought about how adaptive sync would work with something like a youtube video.

[demo]

But if adaptive sync is active, it's no longer at 144hz.

It would be at 60hz for 60fps content, etc.

Well, I guess the lack of judder I'm seeing must be a lie.

144 is not evenly divisible by 30 or 60.

With 24fps content there are 6 refreshes per frame so there is no pulldown/judder.

[Roadhog]

But if adaptive sync is active, it's no longer at 144hz.

It would be at 60hz for 60fps content, etc.




144 is not evenly divisible by 30 or 60.

With 24fps content there are 6 refreshes per frame so there is no pulldown/judder.

Got a video to share that will show judder at 144hz but not 120hz?

[demo]

I don't have a camera that records at 144fps..

[Roadhog]

I don't have a camera that records at 144fps..

No no. Do you have a video that I could play back that you yourself can see judder on? I happen to have a camera that can record at 240 fps if needed. lol

[demo]

Any 30 or 60fps video will behave the same way. Try watching a scene where the camera pans. It will skip frames at regular intervals.

In fact, it's no different than 30 or 60fps in a game while locked at 144hz.

[Och]

And its been exactly five years since my original post. I have forgot most of the technicalities that were originally posted, are there now good options?

I am looking for a monitor that is at least 27", preferably 32. It must be at least 4k native, must do 120 or 144hz at 4k with no compression, and better yet all that in 10 bit color, also with no compression. I understand it will require at least a 3000 series nVidia card with HDMI 2.1 support. I see that no card yet supports Display Port 2.0/2.1, they are all still DP 1.4a which doesn't have the bandwidth required to drive a monitor with my desired specs.

Looking at monitors, there are a number of them that seem to match the spec, but I'm afraid if they do some compression without announcing it in the specs.

Another thing that concerns me, I've been using Quadro cards, which only come with DP ports, and they are all still version 1.4, even the latest nvidia RTX A6000.

[KAC]

You can run 10 bit with DSC to my knowledge. Looks exactly the same. Quite a few monitors out now with 4K 144 Hz.

HU did a December update with all the known options.

Worth a watch on their channel.

[Och]

You can run 10 bit with DSC to my knowledge. Looks exactly the same. Quite a few monitors out now with 4K 144 Hz.

HU did a December update with all the known options.

Worth a watch on their channel.

Who is HU?

[koralis]

Just bought a 55 for the living room. Specs on 42 comparable if not too large. Has a gaming mode. 120 hz. Reportedly good. Gsync and free sync too.

https://www.rtings.com/monitor/reviews/lg/42-c2-oled

[KAC]

Who is HU?

https://youtu.be/v2Fp_sqg4gE

[Nagorak]

An issue to consider with 4K 120/144 Hz is it's still hard to actually run games at that resolution and frame rate. It still requires an absolute top of the line GPU in order to do it, and even then some games will not run at those frame rates maxed out.

[KAC]

I have started using DLDSR 4K and most games are pumping 120+ fps with a 4090. Which specific game are you referring to as I would like to test it out. I have always played with max graphics options.

[Och]

I have started using DLDSR 4K and most games are pumping 120+ fps with a 4090. Which specific game are you referring to as I would like to test it out. I have always played with max graphics options.

I wonder what happens to 24fps movies when they are displayed on a 120 or 144hz monitors. On traditional 60hz displays they have jitter due to frame pull, but since 24 divides evenly into 120 and 144 there should be no jitter?

[KAC]

Never faced an issue. I have a 240 Hz monitor.
But then again I don’t watch movies on it. But I do watch tons of YouTube and it runs fine.

[demo]

I wonder what happens to 24fps movies when they are displayed on a 120 or 144hz monitors. On traditional 60hz displays they have jitter due to frame pull, but since 24 divides evenly into 120 and 144 there should be no jitter?

There is no pulldown on 120 or 144hz monitors. It will show the same frame for 5 refreshes @ 120hz, or 6 refreshes @ 144hz.

[Och]

There is no pulldown on 120 or 144hz monitors. It will show the same frame for 5 refreshes @ 120hz, or 6 refreshes @ 144hz.

So that's a bit of a concern, the consensus is that movies look "cinematic" with the pulldown, and thats why they are being shot at 24fps instead of 30 or 60 fps.

[demo]

Films being shot in 'cinematic 24fps' has nothing to do with pull down, they are two different things. You want to avoid pulldown. That's why TV's with a proper cinema mode play movies in a native 24hz (or multiple of 24hz).

Pulldown is a throwback from US NTSC broadcast days where TV is broadcast at 24fps @ 60hz which does not divide evenly, resulting in frames being held for 3 refreshes and then 2 refreshes, making it stutter or jitter. In PAL land (Europe, UK, Australia) video is broadcast at 25fps @ 50hz, so there is no pulldown.

[Och]

Films being shot in 'cinematic 24fps' has nothing to do with pull down, they are two different things. You want to avoid pulldown. That's why TV's with a proper cinema mode play movies in a native 24hz (or multiple of 24hz).

Pulldown is a throwback from US NTSC broadcast days where TV is broadcast at 24fps @ 60hz which does not divide evenly, resulting in frames being held for 3 refreshes and then 2 refreshes, making it stutter or jitter. In PAL land (Europe, UK, Australia) video is broadcast at 25fps @ 50hz, so there is no pulldown.

I understand the difference between low 24fps movies are shot in, and the 3:2 pull down, but from what I am reading on various sources, the concensus is eliminating the pulldown is taking away from the cinematic experience caused by the jitter. I'm not too concerned with it as I barely even watch movies anymore.

On a side note, the 24fps is only for movies, right? What about regular TV broadcasts - news, sports, shows, etc?