LG 34GK950G, 3440x1440, G-Sync, 120Hz

[Baddass]

How does this affect calibration? I use DisplayCal so would I still select the normal settings to calibrate it to SRGB? or would I need to calibrate it to the DCI P3 standard? How would that affect games that mainly use SRGB?

i should have clarified this a bit better earlier, but the "Nano IPS" panel (aka "IPS with Nano Color" as LG.Display put it) is basically their answer to competitor equivalents, like Samsung as an example, where Quantum Dot coating is used to increase the colour gamut of their backlight. With these new LG.Display IPS panels a KSF phosphor layer (K2SiF6 doped with Mn4) is applied to the normal W-LED backlight unit to enhance it's colour gamut. They say this can then offer a wider gamut covering 98% DCI-P3 (we measured 97% in fact on the F model) compared to a typical 95% coverage offered by Quantum Dot solutions. There is, as far as i know, no other changes fundamentally to the IPS panel technology.

in terms of how this impacts experience. It means that by default the screen covers about 35% more colours than a typical sRGB screen, including all the other ultrawide IPS models to date. If you're working with any wider gamut content, including anything HDR or mastered for that wider DCI-P3 colour space then you will be able to enjoy that as intended. So it's great for viewing HDR games and movies, as well as working with wider gamut content if you need to for photoshop etc. when viewing normal sRGB content then it would add an artificial boost to the colours making them more vivid and colourful, which actually is quite nice and often preferred for gaming and multimedia anyway, regardless of whether the content is designed for sRGB or not. If you really want to revert to sRGB for whatever reason, including if you need to work with sRGB content for photo editing or something, there is also a decent sRGB emulation mode available from the OSD menu in one of the presets so there's always that option too

 

[Baddass]

How are the Hz steps on the 'F' version?
Also can you test if you can just switch to 16:9 (2560*1440) ingame and if it looks fine then?

at native resolution by default there are refresh rate settings for 60, 75, 100, 120, 144Hz on the F model. Switching to 2560 x 1440 works fine and there are various scaling options available in the OSD menu as well. it basically just adds black borders down the sides though

Is this only applicable to the F version? Does the G version have this at 120hz?

it's been added separately to the F model, and not to the G model. i am 90% sure that there is no ULMB on the G either, but will double check when i hook it up again just in case

 

[Legend]

i should have clarified this a bit better earlier, but the "Nano IPS" panel (aka "IPS with Nano Color" as LG.Display put it) is basically their answer to competitor equivalents, like Samsung as an example, where Quantum Dot coating is used to increase the colour gamut of their backlight. With these new LG.Display IPS panels a KSF phosphor layer (K2SiF6 doped with Mn4) is applied to the normal W-LED backlight unit to enhance it's colour gamut. They say this can then offer a wider gamut covering 98% DCI-P3 (we measured 97% in fact on the F model) compared to a typical 95% coverage offered by Quantum Dot solutions. There is, as far as i know, no other changes fundamentally to the IPS panel technology.

in terms of how this impacts experience. It means that by default the screen covers about 35% more colours than a typical sRGB screen, including all the other ultrawide IPS models to date. If you're working with any wider gamut content, including anything HDR or mastered for that wider DCI-P3 colour space then you will be able to enjoy that as intended. So it's great for viewing HDR games and movies, as well as working with wider gamut content if you need to for photoshop etc. when viewing normal sRGB content then it would add an artificial boost to the colours making them more vivid and colourful, which actually is quite nice and often preferred for gaming and multimedia anyway, regardless of whether the content is designed for sRGB or not. If you really want to revert to sRGB for whatever reason, including if you need to work with sRGB content for photo editing or something, there is also a decent sRGB emulation mode available from the OSD menu in one of the presets so there's always that option too

I guess in respect to HDR content though, this benefit is going to be largely irrelevant and lost on the 'G' version given it doesn't accept an HDR signal? Unlike the 'F' version, even though it is only the measly VESA 400 standard.

 

[Baddass]

I guess in respect to HDR content though, this benefit is going to be largely irrelevant and lost on the 'G' version given it doesn't accept an HDR signal? Unlike the 'F' version, even though it is only the measly VESA 400 standard.

Not really as an HDR game or movie should still play fine, so it can still “accept the HDR content” input as it were. you’d benefit from the extended gamut and 10-bit colour support just the same as you would on the F. The F doesn’t have any local dimming and so can’t produce any better dynamic range than the G model anyway. It does have a slightly brighter backlight at 400 cd/m2 which allows it to be “certified” ( for what little that’s really worth) under the HDR400 banner. Apart from that slight brightness boost I don’t see any additional hdr benefit over the G model

 

[ChrisPyzut]

Man I can't wait for the G model review.

 

[Glimni]

If you’re going to lower the Hz on the F model what would be the reason to buy that over the G model?

Well i either need Gsync to have smooth gameplay or (as i did since forever) i need to use Vsync while having min fps@maxHz. It both feels the same to me... just that using Vsync instead of Gsync means that i get some more latency but at least at 144hz (that i would use for competitive games for sure cause there fps is more important) the latency is only a little bit worse than with gsync. (unlike vsync at 60hz). But at low fps i will only play non competitive games anyway so who cares about some latency.

Of course i would need to make sure that the hz is set for the game i play but that isnt much of a hassle to me.

The G is more expensive and has max 120hz (24hz less) but those arent guranteed or even if i get a replacement its potential trouble to deal with.
Also i thought the G only has 8bit cause only the F has frc (fake 10bit). But Baddass just said they both got it so i hope he is right but i need confirmation.
And i think the F will be easier to resell just incase i ever want to.

I don't quite understand the logic though, other than the Freesync version saves you a bit of money. Still, G-Sync is inherently better. Unless you're dead set on getting an AMD card in the future, you're deliberately setting yourself up for an inferior gaming experience. I guess if you're coming from a non-G-Sync monitor anyway though you won't know what you're missing.

Kinda answered that right above in this post.
If AMD brings something that gets near a ti i would be willing to switch... but i dont count on it. I guess AMD will stay midrange.
I tested Gsync and i like it. It delivers the same experience as Vsync with stable max fps. So i like Vsync gaming too cause its just as smooth as with Gsync with 2 downsides.
A. More latency (but only much more at low hz)
B. Your 99% fps need to be at or above the Hz your monitor is set to.

Instead of Vsync you could use RTSS. It has under 10ms of input lag and noticeably improved frame pacing (from what I have seen)

I heard of that but dont really know about it and what i heard wasnt great (dont remember why..) but for now i dont count on it and rather stick to Vsync (fps@maxHz) or Gsync for smooth gameplay.

at native resolution by default there are refresh rate settings for 60, 75, 100, 120, 144Hz on the F model. Switching to 2560 x 1440 works fine and there are various scaling options available in the OSD menu as well. it basically just adds black borders down the sides though

Thx.

Not really as an HDR game or movie should still play fine, so it can still “accept the HDR content” input as it were. you’d benefit from the extended gamut and 10-bit colour support just the same as you would on the F. The F doesn’t have any local dimming and so can’t produce any better dynamic range than the G model anyway. It does have a slightly brighter backlight at 400 cd/m2 which allows it to be “certified” ( for what little that’s really worth) under the HDR400 banner. Apart from that slight brightness boost I don’t see any additional hdr benefit over the G model

I thought the G only has "8bit" cause unlike the F the G doesnt have FRC?
I heard it has something to do with lack of bandwith cause of dp1.2 or generally because of the gsync module?
Can you 100% confirm the G has 10bit (8bit+FRC)?

 

[NirK]

i should have clarified this a bit better earlier, but the "Nano IPS" panel (aka "IPS with Nano Color" as LG.Display put it) is basically their answer to competitor equivalents, like Samsung as an example, where Quantum Dot coating is used to increase the colour gamut of their backlight. With these new LG.Display IPS panels a KSF phosphor layer (K2SiF6 doped with Mn4) is applied to the normal W-LED backlight unit to enhance it's colour gamut. They say this can then offer a wider gamut covering 98% DCI-P3 (we measured 97% in fact on the F model) compared to a typical 95% coverage offered by Quantum Dot solutions. There is, as far as i know, no other changes fundamentally to the IPS panel technology.

in terms of how this impacts experience. It means that by default the screen covers about 35% more colours than a typical sRGB screen, including all the other ultrawide IPS models to date. If you're working with any wider gamut content, including anything HDR or mastered for that wider DCI-P3 colour space then you will be able to enjoy that as intended. So it's great for viewing HDR games and movies, as well as working with wider gamut content if you need to for photoshop etc. when viewing normal sRGB content then it would add an artificial boost to the colours making them more vivid and colourful, which actually is quite nice and often preferred for gaming and multimedia anyway, regardless of whether the content is designed for sRGB or not. If you really want to revert to sRGB for whatever reason, including if you need to work with sRGB content for photo editing or something, there is also a decent sRGB emulation mode available from the OSD menu in one of the presets so there's always that option too

But would it not be pretty much useless for HDR due to the lack of FALD backlight? It would either be extremely dark, or have very bad black levels. For example a VA could just about get away with it (still not great), but an IPS I would think would be better just using SDR.

 

[NirK]

I would say technically HDR400 should be called SDR400, because it is not HDR at all the dynamic range is the same.

 

[SeriousThing]

https://www.testberichte.de/p/lg-tests/34gk950g-testbericht.html

It seems like there is already a test online (german)

 

[tostitobandito]

https://www.testberichte.de/p/lg-tests/34gk950g-testbericht.html

It seems like there is already a test online (german)

Looks like that's dated 9/4, so I'm guessing it's just their thoughts on the spec sheet and not an actual product review. They complain about the weight and power consumption numbers from the spec sheet, and don't mention anything which indicates they actually had hands-on time with the monitor.

 

[Baddass]

But would it not be pretty much useless for HDR due to the lack of FALD backlight? It would either be extremely dark, or have very bad black levels. For example a VA could just about get away with it (still not great), but an IPS I would think would be better just using SDR.

Well in one regard yes, neither the F or G model offer any form of local dimming to actually extend the dynamic range and improve the contrast ratio. So you will not get the benefits of that when it comes to viewing HDR. On the other hand HDR content is also about improving the colour space and so both models can support that element of it.

So my point about the gamut was really that if you have wide gamut content, including HDR content, you will be able to benefit from that extended colour space on these LG models compared with a normal sRGB screen

 

[Baddass]

I thought the G only has "8bit" cause unlike the F the G doesnt have FRC?
I heard it has something to do with lack of bandwith cause of dp1.2 or generally because of the gsync module?
Can you 100% confirm the G has 10bit (8bit+FRC)?

I’m sorry you are quite right! The G model only supports 8bit max colour depth. So for HDR you could still support the wider colour space but not the 10-bit colour depth element. Correction though also to what I said earlier is that both models offer a 400 cd/m2 brightness spec

 

[dogma77]

The G model looks less and less appealing

 

[JediFragger]

The G model looks less and less appealing

Have to agree, the F model seems to be where the excitement lies! ULMB-mode seems to be a really good option if you keep the fps fairly high (above 100).

 

[SeriousThing]

I'm quiet new to this.
Will any games profit from the extra wide gamut?

 

[JGF111]

The G model looks less and less appealing

Its definitely a bit of a bitter pill for an nvidia card owner for sure. Less bullet point features (notwithstanding the value or importance of said features) for a higher price. Tough ask, tough ask.

 

[3YOB]

I'm quiet new to this.
Will any games profit from the extra wide gamut?

Most gamers don't really care about color. Some do, but the NanoIPS is really there so that you don't have to buy another monitor for media content consumption and creation like high-res photo editing or video production. However, the curved screen is not all that conducive to crop/tilt overlays.

 

[3YOB]

Most popular questions for the reviews:

• Can you run at 144Hz with Gsync turned off?
• How is the backlight bleed and IPS glow?

 

[NirK]

Most popular questions for the reviews:

• Can you run at 144Hz with Gsync turned off?
• How is the backlight bleed and IPS glow?

Here are my educated guesses :

No
Similar to the Panel in the X34P

 

[Legend]

• How is the backlight bleed and IPS glow?

This won't necessarily tell very much even if there is none. I've seen countless reviews of IPS monitors where they exclaim how minimal the glow/bleed is, yet you end up seeing complaint after complaint from those who end up buying it.