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Asus ROG Strix XG27UQ 4K 144Hz Monitor Review: Faster Than Fast

Nearly perfect

Asus ROG Strix XG27UQ
Editor's Choice
(Image: © Asus)

To learn about our HDR testing, see our breakdown of how we test PC monitors.

Applying an HDR10 signal to the XG27UQ puts it in HDR mode automatically. All image controls are locked out, and you get two HDR-specific modes, Gaming and Cinema. As you’ll see, they are quite close in appearance and accuracy.

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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)
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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)
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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)

HDR Brightness and Contrast

Starting with the contrast tests, the XG27UQ proves capable of its DisplayHDR 400 certification with over 463 nits peak white. Only the X27 and PG27UQ are significantly brighter by virtue of their 1,000-nit full-array local dimming (FALD). You'll have to pay almost double the price for FALD. With Dynamic Dimming locked to the on position, the XG27UQ delivered a very low HDR black level. We had a hard telling if the monitor was still powered on when viewing a black field pattern in a moderately lit room. Resulting contrast is an excellent 8,216.40:1. We measured identical results in both Gaming and Cinema HDR modes.

You can see that the XG279Q has a more aggressive dynamic feature, and the two FALD screens with their 384 dimming zones are on another level. For this price though, there isn’t much better HDR than that delivered by the XG27UQ.

Grayscale, EOTF and Color

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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)
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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)
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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)
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Asus ROG Strix XG27UQ

(Image credit: Tom's Hardware)

All Asus HDR monitors offer two HDR-specific modes, Gaming and Cinema. Sometimes the difference is easy to spot, but with the XG27UQ, we could barely tell them apart, and the measurements bear that out. Grayscale accuracy is virtually the same with a slight purple tint visible in the brightest steps. The EOTF luminance curves are also similar with a slightly softer transition shown in the Cinema chart. With no difference in either color or contrast, we stuck with the default Gaming HDR mode for our hands-on tests.

  • law records
    1.) Does the monitor have a fan? I've read about how loud monitor fans can be, so the ideal monitor for me wouldn't have one.
    2.) Does this panel have FALD? I suspect it doesn't, given the price.
    3.) How big a difference is there between Gsync compatible and "proper" G-sync? I have a "proper" G-sync monitor with the chip, but it looks like more and more screens are just going with the "compatible" version which doesn't. I read some of the technical differences, but curious about how noticeable it is when gaming.

    I have an 1080ti and will be upgrading to a 3080 once supply stabilizes.
    Reply
  • truerock
    So, DisplayPort 1.4 supports a maximum of 4K UHD (3840 × 2160) at 60 Hz with 30 bit/px RGB color and HDR .

    You couldn't have tested 144MHz.

    Oh... I think you may have used compression.
    If you use compression I think there should be some details about that in your testing... or at least clearly state: "this is a test with compression" for each test using compression.
    Reply
  • Shadowclash10
    I don't think saying it's expensive compared to other 27 inchers is a good con. It's a somewhat premium 4K 144hz monitor, what did you expect? Now, one con is that is has very large and ugly bezels.
    Reply
  • veldrane2
    WTB 120Hz+, 4k, sub 4ms, 29-34" monitor.

    I've been stuck on 27 inchers for about a decade now. Going to another is not really an upgrade. Double this due to increase in quality of 2k.

    So its kinda pointless. We have all this wonderful new hardware cpming out that can finally run 4k really, really well, and monitor manufacturers in general seem to be just derping around instead of pumping out full lines of HBR3 displays.

    And no, I don't want it to be TV sized. Not 43", not 55" or whatever else, just an upgrade from not into 27".

    Maybe someone at Tom's Hardware could reach out to some of these manufacturers and do a write up about this hold up. Might turn out to be a good topic for an article.
    Reply
  • Bisbus
    I would definitely second this. There simply aren't any 32" high refresh rate monitors out. Especially with the 3080 coming out it seems manufacturers are caught behind the times.
    Reply
  • excalibur1814
    Manufacturers aren't caught behind the times, they're just lazy and will continue to churn out the same, tired, old tech as they're making money. I have a simple, standard, Asus VS248HR which cost £120. It's terrible, but does what it does. I left a reasonable review on Amazon, to which Asus replied as they didn't like what I'd written.

    These companies will continue releasing rubbish, at the lower end, to ensure anything above 'standard' affords a premium. Typical, standard, every single day profit. Heck, we'd still be on 1366x768 if they had their way.

    P.s. It would be amazing if these companies also made it 100% clear if the 3.5m jack audio/heaphone out was linked to the hdmi port.
    Reply
  • peteer01
    Talks about DSC as if it helps with image lag instead of calling it out as necessary compression because DisplayPort 1.4 doesn’t natively support the bandwidth needed for 144Hz 4K
    Says you can count the number of 4K 144Hz monitors on one hand
    Doesn’t bother to list the lack of HDMI 2.1 (which has more bandwidth than DP1.4) under cons or in the part of the article I readI stopped couldn't get through this advertisement. The misinformation is frustrating. I get it, you write reviews that make products look good, but can you avoid lies and misinformation?
    Reply
  • Jackal_x
    How does it compare to the LG 27GN950?
    im pretty stuck atm for what i should buy, maybe its worth waiting to see if theres more options in the next few months with HDMI 2.1 support?
    Reply
  • kyzarvs
    law records said:

    2.) Does this panel have FALD? I suspect it doesn't, given the price.

    Today, we’ll be looking at a less-expensive alternative that delivers everything except the FALD backlight for $800 as of writing. Meet the Asus ROG Strix XG27UQ.
    The sentence that includes the price - second paragraph.
    Reply
  • Shadowclash10
    excalibur1814 said:
    Manufacturers aren't caught behind the times, they're just lazy and will continue to churn out the same, tired, old tech as they're making money. I have a simple, standard, Asus VS248HR which cost £120. It's terrible, but does what it does. I left a reasonable review on Amazon, to which Asus replied as they didn't like what I'd written.

    These companies will continue releasing rubbish, at the lower end, to ensure anything above 'standard' affords a premium. Typical, standard, every single day profit. Heck, we'd still be on 1366x768 if they had their way.

    P.s. It would be amazing if these companies also made it 100% clear if the 3.5m jack audio/heaphone out was linked to the hdmi port.
    Yeah. Sadly, that;s how the majority of tech companies run. If they have no competition, why push hard and innovate? The only reason is so that an upstart doesn't come along and dethrone them. Just look at Intel! There are so many improvements they could easily make for consumers, but they don't because consumers are "content".
    Reply