NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

[Discorz]

We got some Pulsar latency measurements from Battle(non)sense.



Pinned in comment section: https://youtu.be/d6-EQoCJVFk?si=f-_utEaGQNk_NAwr

[Illuxzaah]

Thank you for sharing the latency measurements for G Sync Pulsar Discorz.

How it fares vs Dyac2 in your opinion Discorz?

[Baron of Sun]

Two questions:

1. Will G-Sync Pulsar work in combination with HDR? I know many monitors strobing techniques only work in SDR.
2. Is it really necessary to have an Nvidia GPU to get Pulsar to work? Pulsar can be integrated into display scalers without the need for a separate Gsync module, so maybe it's source independent?

[kyube]

Two questions:

1. Will G-Sync Pulsar work in combination with HDR? I know many monitors strobing techniques only work in SDR.

The reason they work with "SDR only" is because most good backlight strobing implementations are models which are only SDR capable due to their YAG phosphor WLED backlight
HDR capabilties & good strobing require a QD-based backlight and such models are rare. KSF/PFS-based models were completely unusable due to the red artifacting caused by the slow red phosphor.

Notable QD-based models include:
G274QPF-QD, 274QRF-QD, EX3210U (edge-lit IPS LCDs)
274UPDF E16M & a few others mentioned here (MiniLed, rolling scan)

2. Is it really necessary to have an Nvidia GPU to get Pulsar to work? Pulsar can be integrated into display scalers without the need for a separate Gsync module, so maybe it's source independent?

According the manuals of the XG27AQNGV & 272QRF X36



Yes.
What will happen if one tries to use G-SYNC Pulsar on a AMD GPU? I don't know.

[Baron of Sun]

Two questions:

1. Will G-Sync Pulsar work in combination with HDR? I know many monitors strobing techniques only work in SDR.

The reason they work with "SDR only" is because most good backlight strobing implementations are models which are only SDR capable due to their YAG phosphor WLED backlight
HDR capabilties & good strobing require a QD-based backlight and such models are rare. KSF/PFS-based models were completely unusable due to the red artifacting caused by the slow red phosphor.

Notable QD-based models include:
G274QPF-QD, 274QRF-QD, EX3210U (edge-lit IPS LCDs)
274UPDF E16M & a few others mentioned here (MiniLed, rolling scan)

2. Is it really necessary to have an Nvidia GPU to get Pulsar to work? Pulsar can be integrated into display scalers without the need for a separate Gsync module, so maybe it's source independent?

According the manuals of the XG27AQNGV & 272QRF X36



Yes.
What will happen if one tries to use G-SYNC Pulsar on a AMD GPU? I don't know.

There are monitors that are HDR capable and have strobing. Of course it's bad HDR because they do not reach high brightness levels, but they support it and disable it as soon as you activate strobing. Is it because they know when activating strobing the brightness reduces to 50 % and effectively it's not really HDR anymore and they don't want users to think "Wait HDR is active but the screen is so dim, what's happening?"? Or is it rather a technical reason, because of the PQ curve or something, that it's more difficult to implement strobing while still tracking the PQ curve correctly?

As Chief wrote in the latest Blurbusters article, Pulsar will work with frequencies down to 48 Hz (optional). So the restrictions Asus or MSI tell us might just be valid for their own monitors. Is there any information about the need of Nvidia GPUs from Nvidia itself?

[Discorz]

Thank you for sharing the latency measurements for G Sync Pulsar Discorz.

How it fares vs Dyac2 in your opinion Discorz?

I tried neither, but I'd take VRR strobing over Fixed RR strobing any day because motion smoothness is near the top of my priority list. Especially when it performs as well as Pulsar does (according to available info). I'd also take sample-and-hold 1000+Hz fps over perfectly strobed 360Hz for same/similar reasons. But ofc your mileage may vary. Know your priorities.

[RynoW]

I know that Pulsar is exclusive to Nvidia cards, but on these monitors can you enable ULMB2 on other HDMI sources (Retrotink4k for example)

[radeko]

phpBB [video]

[dickcheneyx]

Recevied my XG27AQNGV this morning and so far its been great. im no super techincal person but no issues so far. My priotiy is mostly motion clairty and this monitor is a great. strobing + VRR is great for CS2 when you get the inetivable frame time spikes. Brightness isnt an issue imo and better than any other strobing ive seen personally. Downsides are that it is an IPS so there is some glow and its matte so it doesnt look anywhere near as good as my XG27UCDMG (4K OLED/240) but man being able to actually track everything (movement, even tracers sometimes in cs2) is wonderful. Im not notciing any crosstalk but again im not the most techincal person, for $650 i really coundlt ask for anything more. Im notcing the ambein light sensor wont enable (i dont want to use it but was curious) so not sure if thats a firmware or my monitor issue. Lowest pulsar rate allowed on this firmware is 75. ill try to answer any questions but keep in mind im only a 6.5 techincal consumer on a scale of 10.

[Beltfed]

Do you notice any flickering at all in games?