NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, ToastyX, black frame insertion (BFI), and now framerate-based motion blur reduction (framegen / LSS / etc).
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kyube
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by kyube » 29 Jan 2026, 19:13

MPRT|GTFO wrote:
29 Jan 2026, 17:59
To me the scanning backlight is actually the more interesting aspect than the VRR support, because of its many potential benefits (as Chief Blur Buster mentioned, beyond the reduced flicker).
Yep, that's why I was interested & hyped for the Pulsar panels in the first place... but sadly we didn't get the adjustability & HDMI 2.1 bandwidth i was hoping for.
Only thing we got was an exorbitant price point for a QHD 360Hz LCD (2022 pricepoint) in the 2026 market (where equivalent panels cost 200–400€) :D
MPRT|GTFO wrote:
29 Jan 2026, 17:59
It is especially good for the cases where the frame rate is always above the refresh rate. In those cases turning off any sync modes and FPS caps is often better for more consistent and a little lower average latency, for reducing geometric skew (turning it into a sawtooth pattern instead), and tear lines are very hard and rare to even notice anyway.
Tear lines only ever became a boogeyman once LCDs started being passed off for something appropriate for gaming and moving pictures. Yeah, of course people would notice tear lines when they're the only freaking sharp thing on a moving picture blurred by persistence and pixel response.
And then, of course people would be irritated even more with global strobing, where tear lines become just a manifestation of a nasty timing error: frame fragments representing different moments in time are shown at the same moment in time. That's potentially an even bigger problem. The whole LCD evolution was a tale of "if you think the problems they create are bad, wait til you see their solutions" all along. So, now that we've done a full circle back to frame transport, scanout and illumination all being done in the same scanning manner, guess what, there will barely be any positive sides to capping frame rates or enabling VRR for the cases where the frame rate stays above the refresh rate. And those cases are many, and increasing.
The biggest thing people forget is that VSYNC ON is also a viable path to tackle 'tearing'...
Which is why I find the Pulsar aspect (VRR+PWM) mediocre as well.
Great write-up, I agree.
MPRT|GTFO wrote:
29 Jan 2026, 17:59
So there will be a big and wide usefulness to a future display (not these, apparently) which may or may not even have VRR support at all, but which combines rolling illumination of some type (either LCD scanning backlight like Pulsar, or a return to rolling scan self-emissive, like some OLEDs already have) and low persistence/MPRT below 0.3ms (actually time spent anywhere near peak luminance, which is what causes the worst of motion blur with fast motion), like a CRT. But with some substantial improvement over all CRT monitors for once, like higher resolution and size, unlike those small TN panels.
Yep. I'm waiting for such a model to occur.
For now, only the MiniLED panels (e.g.: MSI 274UPDF E16M) & the new Pulsar panels (but only ≥240Hz) are viable choices for rolling-scan backlight strobing that targets the ≤1ms MPRT range (closest thing to the term “CRT equivalent”)
Rest is either 'plagued' by global scan, KSF/PFS (red fringing), bad PPI (e.g.: XG270 & 27" FHD BenQ models) or too high of a refresh rate to avoid PWM desync (XL2586X)
I personally don't see reason to expose oneself to flicker (especially multi-strobe flicker from Pulsar) for barely any clarity effects.

tsarri
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by tsarri » 29 Jan 2026, 19:32

Been testing the XG27AQNGV side by side with the PG27AQN for a couple of days now.

Compared to ULMB2, Pulsar is a noticeable improvement between 100-300 fps but, as others have mentioned, motion starts to degrade under 100 fps. Closer to 360 fps the benefits of Pulsar start to become less obvious, and 50% PW ULMB2 on the PG27AQN can look sharper.

Brightness with Pulsar on is actually insane, and for those who prefer a dimmer picture, this might genuinely be a problem. Even the minimum brightness seems absurdly high, definitely higher than any other monitor I've ever used. My copy also has horrendous IPS bleed, even compared to my PG27AQN, and contrast is a bit worse. ULMB2 feels like an afterthought on this monitor, it's just a worse implementation than on the PG27AQN since you cant change the PW.

So the monitor as a whole is disappointing but Pulsar is exciting, although not perfect.

MSIfanboy
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by MSIfanboy » 29 Jan 2026, 19:53

People are claiming these monitors are 500 nits with pulsar, couldn't they have made a lower strobe duty and say 350-400 nits and got a clearer image?

tsarri
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by tsarri » 29 Jan 2026, 20:18

MSIfanboy wrote:
29 Jan 2026, 19:53
People are claiming these monitors are 500 nits with pulsar, couldn't they have made a lower strobe duty and say 350-400 nits and got a clearer image?
That was my first thought when testing it out. Brightness is also higher with Pulsar enabled.

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Discorz
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by Discorz » 30 Jan 2026, 03:04

I just noticed something! Based on the oscillographs MUB provided, the main pulse width is unproportionally narrower at the bottom end and wider at the top end of the range. That means pulse width is not a fixed 25%. I measured them manually, then transferred the findings to one of my MPRT charts to see how it scales over the range. It's a less steep straight line that intersects with advertised 25% line at 120 fps. So it still scales linearly, just not in a way we are used to. After some rounding up this is what I got:
  • 100 fps * 23.8% = ~2.4 ms
  • 120 fps * 25% = ~2.1 ms
  • 144 fps * 26.5% = ~1.8 ms
  • 170 fps * 28.1% = ~1.7 ms
  • 240 fps * 32.5% = ~1.4 ms
  • 330 fps * 38.1% = ~1.2 ms
  • 360 fps * 40% = ~1.1 ms
Interesting behavior! Not sure if this is intentional or some limitations are at question. Also, my findings don't fully correspond with their "Over 1000 Hz Effective Motion Clarity" claim. However it does go beyond "quadruple motion clarity" below 120 fps.

The chart allowed me to visualize a shortcut formula for approximate Pulsar MPRT target (main pulse):
  • MPRT = (1000/frame rate)*0.175 + 0.625
For now formula works for 360Hz input and VRR frames below. It’s still unclear how Pulsar scales across different input frequencies, or how it behaves with VRR off (ULMB 2). Also beware of the LFC at <90 fps. Things might change for bottom range if they introduce algorithms in firmware update.

Pulsar MPRT 2026.png
Pulsar MPRT 2026.png (26.83 KiB) Viewed 1059 times
Image
MUB Pulsar 98 Hz fps
MUB Pulsar 170 Hz fps.jpg
MUB Pulsar 170 Hz fps.jpg (562.23 KiB) Viewed 1447 times
Image
MUB Pulsar 239 Hz fps
MUB Pulsar 330 Hz fps.jpg
MUB Pulsar 330 Hz fps.jpg (578.09 KiB) Viewed 1447 times
Last edited by Discorz on 01 Feb 2026, 11:08, edited 2 times in total.

whitespider999
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by whitespider999 » 30 Jan 2026, 03:59

tsarri wrote:
29 Jan 2026, 19:32
Been testing the XG27AQNGV side by side with the PG27AQN for a couple of days now.

Compared to ULMB2, Pulsar is a noticeable improvement between 100-300 fps but, as others have mentioned, motion starts to degrade under 100 fps. Closer to 360 fps the benefits of Pulsar start to become less obvious, and 50% PW ULMB2 on the PG27AQN can look sharper.

Brightness with Pulsar on is actually insane, and for those who prefer a dimmer picture, this might genuinely be a problem. Even the minimum brightness seems absurdly high, definitely higher than any other monitor I've ever used. My copy also has horrendous IPS bleed, even compared to my PG27AQN, and contrast is a bit worse. ULMB2 feels like an afterthought on this monitor, it's just a worse implementation than on the PG27AQN since you cant change the PW.

So the monitor as a whole is disappointing but Pulsar is exciting, although not perfect.
you can get eye protective shields that you place over your monitor, it can allow the brights to be far less drastic. Useful if you have light sensitivity for any reason. Not ideal, but you'd be able to experience this monitor with one of those without too much eye strain or eye drain.

MSIfanboy
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by MSIfanboy » 30 Jan 2026, 07:03

phpBB [video]

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kyube
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by kyube » 30 Jan 2026, 07:12

MSIfanboy wrote:
30 Jan 2026, 07:03
phpBB [video]
Image
Confirmed:
This new AUO panel is the fastest ≥300Hz LCD panel on the market. It beats any ≥300Hz IPS I've seen by quite a large margin.
This is E-TN/Rapid-TN levels of G2G RT performance.
Definitely rivals OLEDs when in sample & hold.

MSIfanboy
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by MSIfanboy » 30 Jan 2026, 07:39

trying to find a review with osrtt being used of pg27aqn to compare, here is osrtt from a TN pg248qp
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tn.PNG
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MSIfanboy
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Re: NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

Post by MSIfanboy » 30 Jan 2026, 07:43

this was before pg27aqn firmware update that tuned the response times with ulmb2
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pg27aqn 2.PNG
pg27aqn 2.PNG (626.29 KiB) Viewed 1341 times
pg27aqn 1.PNG
pg27aqn 1.PNG (615.9 KiB) Viewed 1341 times

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