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Results: Viewing Angles, Uniformity, Pixel Response, Input Lag

AOC G2770PQU 27-Inch 144Hz Gaming Monitor Review
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To learn how we measure screen uniformity, please click here.

While many users dismiss TN panel technology, its only real flaw is poor off-axis image quality. The G2770PQU looks like every other TN-based screen we’ve photographed. From the side, we see a significant red shift, light falloff, and crushed shadow detail. From above, there is almost no difference between the brightest and darkest steps. But as long as you view the screen head-on from two or three feet away, you probably won’t be able to tell it apart from an IPS display.

Screen Uniformity: Luminance

As we recorded the values for the black field pattern, we could tell we had a winner on our hands. The G2770PQU sample AOC sent us posts the best result out of all the monitors we’ve tested in this particular metric. It even beats the pro screens that include uniformity compensation.

Here’s the white field measurement:

The white field result is comfortably under 10 percent, which makes any aberrations invisible to the naked eye. The only measurable hotspot is at the center of the screen. The G2770PQU is obviously well-made with excellent quality control.

Screen Uniformity: Color

The color uniformity result is higher than average, but still well under three Delta E, where errors become visible. The main flaw, according to our meter, is in the upper-left portion of the screen.

Pixel Response And Input Lag

Please click here to read up on our pixel response and input lag testing procedures.

We had to do things a little differently for this review because our pattern generator only goes up to 60Hz. So, we filmed a mouse movement that triggers the field pattern’s appearance. Since this is less precise than using the generator, we averaged five measurements. The tests were run at the G2770PQU’s maximum refresh rate of 144Hz.

The seven-millisecond result is right up there with the other 144Hz TN-based screens we tested. Overlord’s IPS display is only a tiny bit behind at nine milliseconds, which clearly shows the effect of refresh rate on screen draw time; faster refresh equals faster response.

Here are the lag results:

We were surprised that the G2770PQU couldn’t quite keep up with its stable-mate, the G2460PQU. Overall lag is much lower than any 60Hz display. But among our high-refresh screens, it’s the slowest.

Like the G2460PQU, AOC doesn't include any sort of blur reduction feature. After running through several of the Blur Busters tests, I can say that it is not sorely missed. When the refresh rate is maxed at 144Hz, motion is quite smooth and resolution in the most detailed images stays solid at fairly high motion rates. Would backlight strobing make it better? Yes, but only a little.

Remember that the downside to backlight strobing is a corresponding reduction in light output. This was an issue with the BenQ XL2720Z because its brightness maxes at about 300 cd/m2. After factoring in the 58-percent drop with Blur Reduction on full, you’re left with only 150 cd/m2, meaning you need a very dark room to see full detail in gaming titles.

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  • 1 Hide
    eklipz330 , September 27, 2014 12:46 PM
    "At 144Hz, motion is very smooth with no obvious ghosting or artifacting. While capabilities like LightBoost are helpful at 60Hz, we’re not sure they're really needed at the higher rates."

    I completely agree. I use a benq xl2411z, and i can understand turning on the blur reduction feature at 60hz. But at 100hz and up, i just don't see the reason why. the blur reduction actually detracts from the overall experience, increases ghosting and crosstalk in particular areas of the screen. Even with modded drivers, it still doesn't seem like the best course of action.

    but light reduction at around 72hz is awesome. the only issue is the flickering, but man is the picture crisp
  • 1 Hide
    jdwii , September 27, 2014 1:28 PM
    400$ no thanks A 27 inch 1080P monitor should be 300$ and no more
  • 2 Hide
    NeatOman , September 27, 2014 3:15 PM
    What do we want!?..
    - 2560x1440 144Hz ! !
    When do we want it!?
    - NOW ! !

    From what i heard when you get close to 120Hz or above you almost can't see the tearing from no-sync at all vs G-Sync, but if it has it for little to now extra charge (like im hoping will happen with free-sync) then ok.. lol
  • 2 Hide
    Bowmaster , September 27, 2014 7:28 PM
    2560x1440 144hz, <1ms response, OLED, under $500. Maybe someday... right now to do something like that would take a few more 0's on the price tag sadly, but that would look sooooo pretty at 27-30 inches. Fun to dream!
  • 0 Hide
    Bowmaster , September 27, 2014 8:27 PM
    2560x1440 144hz, <1ms response, OLED, under $500. Maybe someday... right now to do something like that would take a few more 0's on the price tag sadly, but that would look sooooo pretty at 27-30 inches. Fun to dream!
  • 2 Hide
    huilun02 , September 28, 2014 6:44 AM
    All I ask for is a 60Hz 1080p IPS with Gsync/Freesync. Screen tearing elimination while still practical and economical. Low entry price for faster adoption by the masses.

    But no, manufacturers insist on making it exclusive to the most high end/expensive models. They want to milk the most out of this tech by keeping it elusive.

    "With speedy G-Sync-capable monitors starting to emerge, is the tech still a relevant choice?" What a stupid question to ask. Just about every monitor that comes with Gsync ARE 144Hz TN panels. Where its benefit is the least noticeable...
  • -1 Hide
    soldier44 , September 28, 2014 11:35 AM
    Been gaming at 2560 x 1600 for over 4 years now and have moved to a Asus 32 inch 4K display with 2 GTX 780 Classifieds running it. Smooth as silk. 1080p is so 2008.
  • -2 Hide
    thequn , September 28, 2014 6:39 PM
    i would be in if it was not a tn pan. unless they changed tech when I was not looking but its 6 bit color and not 8
  • -1 Hide
    knightmike , September 28, 2014 7:39 PM
    TN looks horrible if you're even a few degrees off center. No, thanks.
  • 1 Hide
    Snookslayer , September 28, 2014 9:42 PM
    When will they make an IPS monitor with these kind of specs?

    TN? No thank you.
  • 1 Hide
    MarkW , September 28, 2014 10:07 PM
    As I read this, the author repeatedly states that we will all have G-Sync monitors soon, and I keep wondering why we are all supposedly going to be using proprietary, costly, Nvidia only sync technology when AMD has put out an open source alternative that is free.

    Are changes coming? Yes. But who wins out at this point I think is going to be up to the market, and monitors that cost $35 more are going to be at a disadvantage if they both function equally or very close to equally.

    Maybe in 6 months we will be able to see both technologies side by side, and get a better idea of what each can do. But we are nowhere near being there to make this decision today.
  • 0 Hide
    rantoc , September 28, 2014 11:12 PM
    The larger the screen the more horrible TN becomes (unless the distance is changed accordingy - But whats the point to buy a larger screen then?)

    Got several different screens available and the TN based Asus Swift PG278Q is definatly the quickest but the picture quality price of a TN panel at that size is heavy, even at almost perfect monitor centered eyes its still borderline to wash out the colors/clarity at the edges. Compared to an Dell US UP3214Q (ips/igzo) or Dell US U3014 (ips) the TN panels is lightyears behind in picture quality (allthoo todays 4k@60hz screens have their issues with the 1.2a display port as their handeled as 2 screens).

    So if you ask me, get two screens - One for quick fps style gaming and one for desktop / slower gaming.

    So for a wishlist - An overdrive IPS panel 27-30" @ 120hz running 2560x1440(1600) and having G-sync (Ever tried an g-sync? if not - try it out, really hope Amd gets freesync to take off and Nvidia wises up and gets behind it)
  • 1 Hide
    mapesdhs , September 29, 2014 3:17 AM
    "But as long as you view the screen head-on from two or three feet away,
    you probably won’t be able to tell it apart from an IPS display."

    Sorry, can't agree there. I have a 27" Dell IPS 2560x1440, and meanwhile I
    bought my brother a 27" Samsung TN 1920x1080. Sitting directly infront of
    the Samsung, I can already see the change in colour & brightness towards
    the corners & edges of the screen, as the angle is large enough to reveal
    the effect despite not sitting off to one side. The Dell screen looks sooo
    much nicer.

    I can imagine TN panels still being reasonbly ok at 24" or below, but by 27"
    the sheer size means one doesn't have to sit off-axis to see the difference.
    With hindsight, if I'd known the effect was going to be that visible, I'd probably
    have bought him a 24" model instead, upgraded to a 27" IPS later.

    Later for my gf's PC, I bought a 24" Dell 1920x1200 IPS.

    Ian.

  • 0 Hide
    Ninjawithagun , October 2, 2014 9:33 AM
    27 inch monitor + 1920x1080 resolution = FAIL
  • 0 Hide
    jbrown156 , October 2, 2014 10:30 AM
    for $400 its not worth it to me to make it worse its just 27" .. no way
  • 0 Hide
    Voytek_ , October 16, 2014 8:04 AM
    I just got this monitor (AOC G2770PQU) revied here and games like BF4 and other
    shooters which I like, haven't tried driving games, look beautiful, just turn off
    the Overdrive feature. Don't fall for the 27" at 1080p looks bad, its awsome. Single card setup can pump 100+ fps ( I got a gtx680 ftw 4 gig) and it shines at bf4,1080p.
    This monitor is a great value.
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