NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

[Baron of Sun]

Please allow duty cycles down to 10% and put that feature into OLED monitors and TVs Any chance that will happen? Digital Foundry said in their latest video that they were told NVIDIA is considering OLED for the future.

[MSIfanboy]

I currently have a ViewSonic XG2431. I'm wondering exactly how clear (as in motion clarity) the image of these new Pulsar monitors are at a low fps (for example 75 Hz) compared to the XG2431. I know the strength of Pulsar is the almost negligable crosstalk, but in terms of just clarity is it just as clear as the XG2431 at such a low framerate? Maybe the Chief knows.

EDIT: Upon inspecting manual, it seems that the 272QRF X36 (MSI's G-SYNC PULSAR model) doesn't support adjusting the pulse width during the use of the standard fixed refresh rate (ULMB2) backlight strobing mode.
My assumption is that it's limited to a PW of 25% in it's ULMB2 setting.

There's no necessity to upgrade to any Pulsar display if you already own the XG2431, as the Viewsonic's fixed refresh rate BL strobing is far better in customizability & therefore benefits to the end-user.
Though, there's an arguement to be had for G-SYNC Pulsar displays. Namely...
Positives:
+ Wide color gamut QD WLED backlight (QD vs YAG phosphor of the Viewsonic)
+ Rolling scan (anecdotally milder than XG2431's global scan in terms eye comfort) multi-strobe PWM (see edit above for single-strobe)
+ Increased pixel density over 24" FHD

Negatives:
- Increase GPUTime due to higher image resolution (1440p)
- VRR+Strobing (multi-strobe PWM) will lead to higher eye-strain potential compared to standard rolling scan backlight strobing (single-strobe PWM)
• Locked down to a Nvidia GPU. AMD GPUs don't work with Pulsar, as per MSI's manual.
• Locked down to the DP1.4 port, rendering it useless for console use.
• Permanent use of DSC due to forced DP1.4 requirement, which can break MPOs & thus affect performance in games negatively. Especially D3D12 games.
• No adjustable pulse width in it's fixed refresh rate (ULMB 2) mode & instead using fixed 25% pulse width.

Neutral (subjective)
- Personally, <240Hz is a 'unusable' MPRT target from a fast-paced gameplay perspective. It's not worth exposing your nervous system to flicker when the MPRT value is at such a high target.

In terms of achievable MPRT (PULSAR is using a fixed Pulse Width of 25%) when using G-SYNC PULSAR (VRR+BLStrobing), we're looking at:
48 Hz — 5,2083ms (“Effective ~192Hz”) [lowest with Pulsar after the announced firmware update]
60 Hz — 4,1667ms (“Effective 240Hz”)
90 Hz — 2,7778ms (“Effective ~360 Hz”) [old low with Pulsar]
120 Hz — 2,0833ms (“Effective ~480 Hz”)
240 Hz — 1,04167ms (“Effective ~960 Hz”)
324 Hz — 0,771605ms (“Effective ~1296 Hz”) [(highest with Reflex cap, since VRR is enabled]
360 Hz — 0,6945ms (“Effective ~1440 Hz”) [if fixed refresh rate backlight strobing at 25% pulse width]

Considering that the maximum achievable brightness of most edge-lit LCD IPS displays fall within 300-400cd/m², we're talking about a brightness range of 75–100 cd/m² when using G-SYNC Pulsar (which uses a fixed 25% pulse width across it's 90–324 Hz range)

To me, ̶t̶h̶e̶ ̶f̶i̶x̶e̶d̶ ̶r̶e̶f̶r̶e̶s̶h̶ ̶r̶a̶t̶e̶ ̶p̶a̶r̶t̶ ̶ (see edit above) & higher pixel density is the most appealing aspect of the new G-SYNC Pulsar displays, as 24" FHD is a terrible pixel density target for the vast majority of desk depths.
The new G-SYNC PULSAR displays are the first QHD panels (since the 27" QHD 144–165 Hz G-SYNC Module models) which isn't nerfed with red fringing, due to the use of a QD WLED backlight.
I'm glad that they aren't using the KSF WLED like the PG27AQN had.

I'm hoping that the 32" 5K 165Hz panels will incorporate the aforementioned settings & a fixed refresh rate setting with adjustable pulse width.

theres no way its going to be 100 nits brightness, the og pg27aqn was 275 nits.

[dickcheneyx]

The XG27AQNGV is available on newegg now (right on the 0800 CST Launch time). The MSI listing is up but not available on newegg, amazon or msi store.

[liquidshadowfox]

Is there any differences between the MSI and Asus one other than the physical location of the light sensor? I know the MSI one is placed better but I don't even think the widget software matters right? I would prefer the MSI one but I ordered the Asus monitor already since it was the first to pop up and I want to get my hands on that gsync pulsar, been waiting 2 years for it

[FlameOnion]

Does all the features of the g sync monitor work on other gpus than nvidia?

[liquidshadowfox]

Does all the features of the g sync monitor work on other gpus than nvidia?

No, Gsync pulsar is exclusive to the DP 1.4 connector AND nvidia GPUs at this time.

[whitestar]

There's no necessity to upgrade to any Pulsar display if you already own the XG2431, as the Viewsonic's fixed refresh rate BL strobing is far better in customizability & therefore benefits to the end-user.

Well, you mention two good reasons yourself, the most important for me being increased pixel density.

In terms of achievable MPRT (PULSAR is using a fixed Pulse Width of 25%) when using G-SYNC PULSAR (VRR+BLStrobing), we're looking at:
48 Hz — 5,2083ms (“Effective ~192Hz”) [lowest with Pulsar after the announced firmware update]
60 Hz — 4,1667ms (“Effective 240Hz”)
90 Hz — 2,7778ms (“Effective ~360 Hz”) [old low with Pulsar]
120 Hz — 2,0833ms (“Effective ~480 Hz”)
240 Hz — 1,04167ms (“Effective ~960 Hz”)
324 Hz — 0,771605ms (“Effective ~1296 Hz”) [(highest with Reflex cap, since VRR is enabled]
360 Hz — 0,6945ms (“Effective ~1440 Hz”) [if fixed refresh rate backlight strobing at 25% pulse width]

I'll be mostly in the 75-85Hz range myself (i.e. effective 300-340Hz). I wonder how clear that will be compared to the XG2431 at those frequencies, which seem very clear in my eyes.

Considering that the maximum achievable brightness of most edge-lit LCD IPS displays fall within 300-400cd/m², we're talking about a brightness range of 75–100 cd/m² when using G-SYNC Pulsar (which uses a fixed 25% pulse width across it's 90–324 Hz range)

You would think that it would affect brightness, but according to the Digital Foundry clip I saw Pulsar didn't affect brightness at all. Also, the HW Unboxed video didn't mention it at all, which makes me think it's not an issue, since they are usually very thorough. But we will soon find out I guess.

[nuninho1980]

Fixed Pulse Width of 25%!?? No, what silly! It should be possible we reduce there PW to 5% for get higher than 1k pixel/s at low vertical frequency - PAL/NTSC!

[radeko]

phpBB [video]

[FlameOnion]

Does all the features of the g sync monitor work on other gpus than nvidia?

No, Gsync pulsar is exclusive to the DP 1.4 connector AND nvidia GPUs at this time.

For me that is absolute garbage, and I heard in Hardware Unboxed video that it needs the latest nvidia driver. With these restrictions this is not for me. I may want to do some gaming with clear motion(or usage) on different mini pc(igpu), maybe some WinXP gaming, try dos etc. . Restricting the monitor on certain gpu vendor and latest driver(I may want older driver for different reasons) is bad.
I don't know much about g sync, early when it came out I read that it works only with nvidia, this still being the same today is bad and stupid. And another thing, looking up videos and hearing about this monitor I did not hear mentions about not working on intel or amd gpu(exception is hardware unboxed video). Even on the asus monitor page I could not find information that it only works on Nvidia GPUS, I consider this disturbing and wrong.