AOC AG271QG Agon 27-inch G-Sync Monitor Review

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When it comes to computer monitors, there are plenty of choices available from multiple major manufacturers in nearly every category. But in the more rarified realm of gaming displays, it seems there are Asus and Acer, and then everyone else. Recently Dell broke into the gaming business with its SE2717H and S2417DG and pretty much hit a home run for performance and features. Now AOC is attempting the same thing, and in our minds it has succeeded with its new Agon line. With 27" flagships supporting FreeSync (AG271QX) and G-Sync (AG271QG), it seems poised to take on the established players with solid products.

If you’re already committed to Nvidia, then comparisons between the two 27" Agon screens are elementary. Buy the AG271QG, install, and enjoy. If you’re able to choose, however, we’ll make it easy for you: there’s no clear winner. The two screens are similar in some ways, different in others; but neither has a memorable advantage.

For FreeSync users the AG271QX makes do with a TN panel, which may nudge some towards the G-Sync camp if you're selecting starting with the display. But the QX includes a cool OSD controller while its G-Sync cousin does not. It also offers a lower price; $200 lower in fact.

But gamers are principally concerned about performance, in the area of motion processing as well as color and contrast quality. By those standards, the two monitors are pretty much the same. Both offer super quick panel response, quick enough that blur-reduction by backlight strobe is largely unnecessary. While this feature is nice to have for those few who don’t have adaptive-refresh-capable systems, it won’t see much use when G-Sync or FreeSync is in play. Input latency is also extremely low for both panels. We expect even the most skilled players to be satisfied with either screen.

Color accuracy and image quality is also very similar. Whether you calibrate or not, the numbers are quite close in our grayscale, gamma, and color gamut tests. The QX has a slight edge in contrast once adjustments are dialed in, but it’s a minute difference. The QG has that 165Hz refresh rate which will give it a slight edge in longevity. While only mega-buck systems can drive a game beyond 120 FPS, the AG271QG will keep up with future advances in graphics processing speed.

Obviously we’re happy with what we’ve seen from AOC’s G-Sync flagship. It and its FreeSync companion have provided a great introduction to the market for the Agon line of displays. We can confidently recommend either screen to any enthusiast, casual or discerning. The AG271QG commands a cost premium thanks to that extra hardware module, but it offers everything we’ve found in similarly-priced gaming screens from Asus and Acer. For its solid performance, build quality, and excellent gaming chops we’re giving the AG271QG our Tom’s Hardware Editor Approved Award.

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Christian Eberle
Contributing Editor

Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.

  • dstarr3
    I appreciate the slightly more grown-up look to this. All the Acer and ASUS gaming monitors look dressed up for 12-year-olds and I'm not going to pay nearly $1k for the privilege of putting those horribly gaudy things on my desk. So this is an improvement. I think I'd still rather have the Dell S2716DG, though. Or at least something that looks like it.
  • beshonk
    How come we haven't seen a review or mention of the viewsonic xg2703? I have that monitor and it is perfect. The price is right and the stand doesn't look gamey like the Acer and Asus.
  • Bradley Coates
    I would also like to see a review of the Viewsonic XG2703. It uses the same panel as this AOC does, but has better on-screen menu.
  • wildkitten
    I hope they do an Ultrawide curved version of this monitor.
  • ubercake
    Just curious... Why does the PG279Q contrast ratio look so different in this review compared to its own review?:,4428-4.html

    ANSI versus other method of contrast measurement?
  • footman
    I'd like to see a review of the Viewsonic as well.
  • WyomingKnott
    What's the thing on the back that looks like an antenna sticking out? Black, about halfway up the right side (left side in the back view)?
  • Yobz Ainsen
    i believe that's where you hang your headphones.