Asus RoG Strix XG27AQM

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Chief Blur Buster
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Re: Asus RoG Strix XG27AQM

Post by Chief Blur Buster » 02 Mar 2022, 17:56

kriegor wrote:
02 Mar 2022, 13:48
techteamGBT has measured gsync enabled to actually have less input lag than with gsync disabled on the PG259QNR, which has a 1-360hz gsync module.
https://www.youtube.com/watch?v=ftZzaT6Tchs
I can confirm that there are really, really good G-SYNC implementations.

I had a recent Twitter chat that included an esports rig organizer that G-SYNC can be a double edged sword -- worse on some displays/games but superior on other displays/games.

It was illuminating to them -- that arguments on both sides of the G-SYNC argument can be correct but it depended on the parameters/variables (the game, the display, the framerates, the VRR ranges, and the quality of its implementation etc) ever since we were the world's first people to measure the input lag of G-SYNC ten years ago (2014) at www.blurbusters.com/gsync/preview2

This was long before G-SYNC 101 where thousands of separate high speed test clips were done to figure out what made G-SYNC tick. Although the information is very dated, many people still consider it the G-SYNC bible.

At CES 2020 (before the pandemic), I met with NVIDIA for a dinner. A manager at NVIDIA privately told me they wished they listened to us early on about framerate caps (they didn't really understand it at first) -- since mythbust some of this "tempral shit" years before the mainstream...

My newer 2022 advice (in addition to good settings/monitor) is to "also always try to get a VRR range bigger than your framerate range". Which means if your games fluctuate 100-300fps, buy 360Hz cuz mousefeel is often different below/above max Hz. In other words, 100-240fps vs 240fps-300fps when doing G-SYNC on a 240Hz monitor. 360Hz G-SYNC tick a lot of boxes in esports. Sometimes it turned out the case where 360Hz non-GSYNC was worse than 240Hz non-GSYNC because of various factors, but 360Hz G-SYNC outperformed 240Hz non-G-SYNC. Those things can happen nowadays, that the brute VRR range overcomes all.

That way, "VRR ranges wider than framerate ranges", esports don't have to worry about the capping bleep or the lag penalty of capping (as a lesser evil to lag penalty of VSYNC ON of uncapped G-SYNC). Only people are realizing that we can now get monitors with VRR ranges wider than framerate ranges, to say goodbye to the esports G-SYNC lag penalty (many causes, but one cause of G-SYNC issues in esports was having framerate ranges wider than VRR ranges).
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ptuga
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Re: Asus RoG Strix XG27AQM

Post by ptuga » 06 Mar 2022, 15:42

I got this monitor a few weeks ago, here are my finding:

- ELMB syncs works VERY well, when I tried vg259qm it was unusable by comparison. But you need to use a good frame limiter, like RTSS, unstable frame times and micro stutters make double images while using ELMB. ELMB also makes micro stutters much more visible.

- Al+tab out of a game turns the screen black for 1-2sec on 270hz 10bit or 240+hz 10bit. Seems related to DSC.

- There is some overshoot on white/bright colors to light greys unless you turn OD way down to 2. I still keep it at 4 for 200+fps gaming, only happens on these specific transitions: https://www.testufo.com/chase#backgroun ... height=180

- It's still a bit annoying Asus didn't include an sRGB clamp.

This could have been the perfect monitor is Asus did a better job with the firmware/tunning.

DrR1pper
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Re: Asus RoG Strix XG27AQM

Post by DrR1pper » 09 Mar 2022, 13:19

mdzapeer wrote:
12 Feb 2022, 15:29
Did you get the XG271QG? wondering what's the strobing range on the monitor under ULMB?
Apologies for the very late reply.

So, in ULMB mode, the Viewsonic XG271QG seems to only work at 120hz and 144hz (the other default options being 60hz,100hz, 200hz and 240hz that are not compatible with ULMB mode). However, if I have the Asus connected at the same time via DP and display set to duplicate mode, I get an additional default option of 165hz (because it is one of the default options provided for the Asus) and it allows me to enable ULMB on the Viewsonic at this refresh rate but it chugs and stutters like crazy (presumable something to do with the gsync module?).

Compared to the Asus that can enable ELMB up to 240hz, I prefer the Asus. When I compare the two monitors side-by-side at 144hz ulmb/elmb, the Viewsonic wins because the GtG overshoot is simply insane at 144hz on the Asus. But when you use the Asus in ELMB mode at 240hz, the overshoot minimises greatly though it can still be observed/noticed when the screen in is motion. The effect is like the image is being slightly sharpened when the things are in motion. Completely tolerable at 240hz elmb but utterly unbearably at 144hz elmb. The Viewsonic on the other hand has the opposite effect. When looking around in game, it's like the image is softened and by a greater magnitude than when the image appears oversharpened at 240hz elmb on the ASUS vs. when looking at a static image/scene.

Here are some UFO Ghosting Test images:

Viewsonic XG271QG 144hz ULMB:
Image


Asus XG27AQM 144hz ELMB:
Image


Asus XG27AQM 240hz ELMB:
Image

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Discorz
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Re: Asus RoG Strix XG27AQM

Post by Discorz » 10 Mar 2022, 04:44

DrR1pper wrote:
09 Mar 2022, 13:19
So, in ULMB mode, the Viewsonic XG271QG seems to only work at 120hz and 144hz (the other default options being 60hz,100hz, 200hz and 240hz that are not compatible with ULMB mode). However, if I have the Asus connected at the same time via DP and display set to duplicate mode, I get an additional default option of 165hz (because it is one of the default options provided for the Asus) and it allows me to enable ULMB on the Viewsonic at this refresh rate but it chugs and stutters like crazy (presumable something to do with the gsync module?).
Try disconnecting the Asus and have only Viewsonic plugged in. Maybe dual setup is messing with available refresh rates.
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Re: Asus RoG Strix XG27AQM

Post by DrR1pper » 10 Mar 2022, 07:25

Discorz wrote:
10 Mar 2022, 04:44
Try disconnecting the Asus and have only Viewsonic plugged in. Maybe dual setup is messing with available refresh rates.
Thanks but I did. When only the Viewsonic, 165hz disappears and 200hz returns. When both plugged in, 165hz returns and 200hz disappears.

Also, it's not the available refresh rates that's the issue. You enable ULMB via the monitor OSD and it only shows up as enablable when you've selected 120hz or 144hz (or the 165hz with both monitors plugged in) and then if you switch to any other resolution (60, 100, 200, 240) it automatically turns ULMB off.

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Re: Asus RoG Strix XG27AQM

Post by Discorz » 10 Mar 2022, 08:07

DrR1pper wrote:
10 Mar 2022, 07:25
Thanks but I did. When only the Viewsonic, 165hz disappears and 200hz returns. When both plugged in, 165hz returns and 200hz disappears.

Also, it's not the available refresh rates that's the issue. You enable ULMB via the monitor OSD and it only shows up as enablable when you've selected 120hz or 144hz (or the 165hz with both monitors plugged in) and then if you switch to any other resolution (60, 100, 200, 240) it automatically turns ULMB off.
In that case it's intentional. Nvidia being nvidia. And there is no official information about this online.
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mdzapeer
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Re: Asus RoG Strix XG27AQM

Post by mdzapeer » 12 Mar 2022, 06:21

DrR1pper wrote:
09 Mar 2022, 13:19
mdzapeer wrote:
12 Feb 2022, 15:29
Did you get the XG271QG? wondering what's the strobing range on the monitor under ULMB?
Thanks checking and posting, glad I went with the XG270 then, I am gonna stick with that until some decent QD-OLED options come out, the Dell Alienware looks amazing but its missing MBR.

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Re: Asus RoG Strix XG27AQM

Post by DrR1pper » 13 Mar 2022, 22:39

mdzapeer wrote:
12 Mar 2022, 06:21
Thanks checking and posting, glad I went with the XG270 then, I am gonna stick with that until some decent QD-OLED options come out, the Dell Alienware looks amazing but its missing MBR.
Most welcome and you've most definitely made the right decision with the XG270AQM vs XG271QG. It is a wonderful monitor imo. I'm looking forward to the QD-OLED. Will be getting one asap. Though I know in theory motion clarity should not be much (if any) different to the XG270AQM in non MBR, I am curious to see how they compare in person. I will be making the switch to the Alienware as my main regardless. My body is ready for OLED and ultrawide. :)

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Re: Asus RoG Strix XG27AQM

Post by DrR1pper » 21 Mar 2022, 23:18

My Alienware should be arriving Thursday.

CheekiWeeb
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Re: Asus RoG Strix XG27AQM

Post by CheekiWeeb » 24 Mar 2022, 03:09

DrR1pper wrote:
21 Mar 2022, 23:18
My Alienware should be arriving Thursday.
I currently own the XG27AQM. I have the alienware qd-oled coming in a few months because of stock here in US. I play more casual games now but also want to dabble in competitive FPS and was wondering if the alienware's 175hz + response time can hold its ground against 270hz IPS.

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