NVIDIA G-Sync Pulsar monitor - Asus ROG Strix XG27AQNGV

[nuninho1980]

Are you worried high input lag at 60Hz or 120Hz with ULMB2-enabled? No worry needed for me despite 60Hz on my Acer Pulsar monitor.

[Chief Blur Buster]

I'm looking forward to a 1000hz monitor with pulsar, than I will get the best of both worlds I assume

There's some caveats with that.

1. At 1000fps, LCD GtG 3%->97% needs to be literally 0.1ms or faster to prevent strobe crosstalk
2. At 1000fps sample and hold, you can get 1ms MPRT without strobing.

Brute framerate-based motion blur reduction can actually outperform strobing today. I have a 720 Hz OLED can go as low as 1.4ms MPRT (1/720sec at 720fps) having less motion blur without BFI or strobing than LightBoost (2.4ms MPRT in year 2013).

Motion blur of strobed = pulsetime
Motion blur of unstrobed = frametime

If you can get frametimes faster than your old pulsewidth, sample and hold can have less motion blur than BFI or strobing! The venn diagram overlaps if you have enough GPU power.

In addition to being difficult to speed up LCD GtG faster than refresh cycles in order to avoid strobe crosstalk, it gets harder when refreshtime:GtGtime ratio is not big enough.



Pulsar is lovely and amazing, but it is possibly a dead-end technology for 1000fps 1000Hz. Pulsar is more useful for the current refresh rate range it supports, and there is 60 years of legacy 60fps 60Hz content.

[Chief Blur Buster]

This means that:
This would be perfectly clear on a CRT

CRT is the gold standard but it isn't full perfect. Ashun's aperturegrille image is as follows:



I can make a cherrypicked "top 1%-ile" of LCD's outperform a FW900 CRT simply by avoiding this, by using 60-100 Hz strobing + ginormous refresh rate headroom. Also, most LCD VR headsets now outperform a FW900 CRT, at least for refresh rates that the VR headset supports.

Obviously, colors and blacks won't be as good as CRT, but I already routinely beat FW900 CRT with the refresh-rate headroom trick. No an easy adjustment, and not enough vendors enable it, but it works on the XG2431:



Large blanking intervals big enough to hide LCD GtG betwee nrefresh cycles. This requires using a low Hz on a ultra-high-Hz LCD (e.g. 200 Hz mode on a 1000 Hz LCD) to allow an LCD to spend 80% of its time idling between refresh cycles (e.g. 0.8/200sec) to hide pixel transitions in total darkness between refresh cycles.

1. Ginormous refersh rate headroom (targetHz:maxHz)
2. Large blanking intervals
3. Good strobe tuning
4. Fast enough LCD GtG

And then you have an infinite motion clarity headroom on an LCD, that just merely depends on how brightly you can strobe a backlight (half pulsewidth = need to strobe twice as bright for same brightness at half persistence), aka Talbot-Plateau Theorem.