I thought I'd pop in here and share my experience with a G-Sync monitor: the Asus PG279Q.
I purchased a re-certified model from newegg for $600. It came with no physical blemishes and the panel has minimal BLB.
+Colors are good
+OSD is good
+Both PS4@1080p and PS3@720p are excellent. The Nier:A demo looked fine scaled to not standard resolution, and Tekken Tag 2 was extremely responsive. I would recommend this monitor to a console gamer & competitive gamer.
+Video content is good.
This is an excellent console gaming and content monitor.
Despite all of the good. I'm sending this thing back. Because it its not a good web browsing or Lightboost gaming monitor.
-IPS glow. GAF Dark sucks now. Thanks to binocular human vision, you can look at a spot with bad glow with one eye, but not see it from the slightly different angle in the other eye. It's annoying. I hope all the people who have slighted TN for off-color angles don't sing IPSs praises, because glow is worse, with a much narrower sweet spot... that gets worse the lower your brightness goes... which compounds with another problem this monitor has...
-The backlight in the PG279Q is really,
really underpowered. This monitor has a reasonable brightness under normal/overclocking conditions, but not under ULMB conditions. You have no choice but to max out the brightness AND PWM function to reach a decently comfortable and readable viewing level. Which puts the panel blur to higher levels than the $175 VG248QE sitting next to it on my desk (set to 10%).
-TestUFO reveals all. The killer: this monitor has extremely noticeable crosstalk with ULMB enabled.
This is what it looks like through a 1000fps camera, not bad right? Now imagine this little guy and his shadow friends being 2-3x more intense in person: a much brighter pinkish tone on the that second ghost, and a heavy gray on ghost 3. Oh my god
its terrible. Go to the UFO test with the black background. Imagine a second ghost right behind the first one with 60% of the opacity. Ugh. Now go to the moving photo test. You see that red thing bottom right? Imagine a solid, dull blue outline overlapping the edges of the whole thing for like 2cm to the right. Like red/blue 3D glasses level shit that ruins the color of the picture. ffffffffffffuuuuuuuucckkkkkk. I could go on.
"Well hey bro that's just benchmarks. You can't see that shit while gaming, video watching, or console gaming, right? Why does it matter?"
-Because reading white text on a black backround is a very real world example. The leftover blur and crosstalk mesh together to make an ungodly combination of visual fuckery on GAF Dark Theme when scrolling. It also exposes the inconsistent response times across the panel. Sometimes the ghost words go away fast, sometimes slow, sometimes there's more smear, other times there's more ghosting. Its nauseating. It's even worse when you turn off ULMB (but that goes for any LCD monitor, really).
The VG248QE is imperfect as all hell, and it does have minimal cross-talk/ghosting. But its a night and day difference compared to the 279q. Scrolling text on GAF Dark is a dream on that thing, even with the bad panel uniformity in the corner
This really kills any interest in I had in an 1440p IPS gaming monitor, especially the ones with the same AUO panel (the Acers'). The only hope seems to be the hyper expensive one with the 384-locally dimming backlight. The 278q is not an option either as its backlight is only slightly more powerful and it has a higher input lag (~2ms more) and overall more end user lag, despite having a lower response time than the 279q.
I have now set my sights on the Asus ROG Swift PG258Q. 1080p, TN, 24in? Ew, right?
Guess what? Linus confirmed that its
the first G-Sync monitor to break the 120hz ULMB limitation. A full 240hz ULMB mode is possible. If this thing cross-talks like the VG248QE w/LB or better, has lower or the same input lag/response time/overall lag, and has an adequate backlight, it could be the ultimate monitor for ULMB/Lightboost fans (who are tolerant of the drawbacks of TN :^X ).
"But, what about the G-sync part of this G-sync monitor???"
Well...