The AOC AG271QX is a good 2560x1440 gaming monitor with a high 144Hz refresh rate and TN panel. It has excellent motion handling due to the fast response time and support for FreeSync. It also has very low input lag which is excellent. Unfortunately, the picture quality is below average and when viewed from up close, the edges of the screen lose accuracy due to the narrow viewing angle.
The design of the AOC AGON AG271QX is excellent. The monitor looks sleek from any angle, and the low profile V-shaped stand supports it well. It is very easy to adjust orientation or height for comfort, and the hook for hanging headphones adds extra convenience. The monitor does stick out a bit from the stand though, so it can't be placed very close to a wall. The build quality feels great due to the quality metal parts.
The picture quality of the AOC AG271QX is decent. It has a TN panel, resulting in a low native contrast ratio so blacks appear gray in a dark room and the image degrades rapidly when viewed at an angle. Thankfully, it gets quite bright to fight reflections and also has a good light-matte finish. This helps to overcome ambient glare and direct reflections, which is good for a bright room. Unfortunately, it doesn't support some more advanced features, such as local dimming and HDR, to improve the picture quality further. However, support for these advanced features is rare.
The contrast ratio of the AOC AG271QX is below average, as expected for a monitor with a TN panel. When viewed in a dark room, blacks appear gray.
The AOC AGON AG271QX monitor does not have a local dimming feature. The video is for reference only.
The peak brightness is great and doesn't depend on the window size so all content looks equally bright.
HDR is not supported.
The horizontal viewing angle is poor but fairly typical for a TN panel. When viewed from even a small horizontal displacement, the contrast drops dramatically due to the raising black level and drop off of brightness. All of the colors shift also. When viewed from up close, the sides of the monitor appear washed out.
The vertical viewing angle of this AOC AG271QX monitor is bad. This is as expected with a TN panel, however, it results in a non-uniform screen due to the different angle to each point on the screen when viewed from up close.
The gray uniformity of the AOC AG271QX is very good, which is great for browsing web-pages or playing media or sports without any dirty screen effect. The uniformity issues visible in the photo are a result of the narrow viewing angles, which causes different sides of the screen to appear slightly different colors.
The dark gray (5%) gray uniformity is even better, and shouldn't cause issues when viewing dark scenes.
The black uniformity of this monitor is below average. This results in dark games or movies appearing blotchy. The sides are also a bit darker than the center, and the top appears a bit darker than the bottom. This is in part due to the poor viewing angle.
Out of the box and with the 'Standard' picture mode, the monitor has a below average accuracy. The white balance dE and color dE are both between 3.5 and 4, which at this level of inaccuracy, is noticeable for most enthusiasts out there. The gamma is also well under our 2.4 target that we aim for and the curve is not tracking closely at all our target curve, as you can see on the gamma picture.
If you don't really intend to calibrate your monitor, the AOC AG271QX does not really have 'Picture Mode' per say, but instead many 'Eco Mode' and 'Color Temp.' settings. The best 'Eco Mode' setting is the 'Standard' mode since only this mode gives you control over the 'Contrast' and 'Brightness' settings. For the 'Color Temp.' setting, you can choose from many color temperature available and select the one that you feel is the best for you. If you want to have manual control over the each of the RGB value, then you will need to set it to 'User'.
After the calibration process, the AOC AGON AG271QX has an excellent accuracy. The white balance dE was brought down to 1.27 and the color dE was brought down to 1.31. This level of inaccuracy is mostly perceivable by professionals who are used to work with a calibrated monitor and should be good for most enthusiasts. The gamma is now more close to our 2.4 target and the curve is also tracking our target curve much more closely than before.
You can download our ICC profile calibration here.
Good color gamut. While the monitor cannot cover the standard s.RGB gamut completely, it reproduces enough of it to display saturated colors and relatively accurate content. Its Adobe RGB coverage is a bit limited though, so it isn't the best choice for more professional use.
The AOC Agon AG271QX is able to fill most of the sRGB color volume. It isn't able to cover deep blacks or dark colors due to the low native contrast ratio but otherwise performs well. In the wider Adobe RGB color space, it isn't able to reproduce the more saturated colors, especially in the green areas.
HDR gamuts are not supported as the monitor only supports SDR.
HDR color volumes are not supported as the monitor doesn't support HDR.
No signs of image retention are visible on this AOC AG271QX monitor, which is excellent.
The monitor is able to display 10 bit gradients very smoothly, which is excellent. Almost no issues can be seen in the gradient.
The AOC AG271QX has no major issues with bleeding of colors.
The motion handling of the AOC Agon AG271QX is excellent. It has an amazing response time, which results in very short trails following moving objects. It uses DC dimming, so the screen is flicker-free, but unfortunately, BFI cannot be enabled to clear up motion. The monitor has a high native refresh rate of 144Hz and can use FreeSync to display variable frame rates lower than its native refresh rate when used with a compatible video card.
Like most monitors, the AOC Agon AG271QX doesn't flicker and instead, shows each image for a full frame. The absence of flicker makes motion appear slightly smoother but results in some persistence blur as objects are followed between frames. It is not possible to use Black Frame Insertion (BFI) to add flicker and help reduce persistence blur. This is unfortunate as flicker is useful to clear up motion even further with fast paced content, such as action or fighting games.
The monitor has a high native refresh rate of 144Hz. Freesync on this monitor can adjust the screen's refresh rate to match the frame rate of a compatible graphics card, which allows playing graphically-intensive games with significant framerate drops without tearing or stuttering. This is one of the best 144 Hz monitors we've reviewed in 2018.
The monitor has excellent low input lag, a high QHD resolution and a large 27" diagonal, which is great for almost any usage.
Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:
|Native Resolution||Non-Native Resolution Tested|
The input lag of the AOC AG271QX is excellent, as expected for a gaming-targeted monitor. The input lag at 60Hz is a bit longer, however, this is due to the longer scan out time and so is expected. The FreeSync input lag is roughly equal to the input lag at native resolution, which is great.
The AOC AG271QX also has a third area of inputs on the side as seen here.
The on-screen display of the AOC Agon AG271QX is very intuitive to use and allows access to a wide range of settings and adjustments. The external quick settings is a nice feature, and overall the controls are very easy to use.
This monitor has a few additional features, such as the quick settings toggle (pictured here) and options to adjust the overdrive when gaming or to increase shadows in dark areas.
We tested the 27" model with a 144Hz TN panel and FreeSync (AG271QX). There are many more variants of AOC Agon Gaming monitors with differences in resolution, size, refresh rate and adaptive sync support which are described in the table below.
If someone comes across a different type of panel or if AOC AGON AX271QX doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.
|Model||Size||Resolution||Refresh rate||Panel Type||Adaptive Sync|
While the AOC Agon AG271QX is a good monitor for mixed usage, it is focused on fast-paced gaming with high refresh rate, FreeSync support, and low input lag. For other uses, there may be better or cheaper monitors available. See our recommendations for the best gaming monitors for PC and the best gaming monitors for Xbox One X.
The AOC AGON AG271QX is much better than the MSI Optix G27C. The AOC AGON has much better ergonomics, making it easier to place it in the most comfortable position. The AGON displays gradients with almost no banding and has a very fast response time, so motion looks crisp with very little blur trail. The higher resolution of the AGON makes it easier to get more done or to see more fine details in games.
The AOC AGON AG271QX is marginally better than the Dell S2716DG. The AG271QX has better black and gray uniformity which is great if your work involves a lot of web browsing or photo editing. The AOC AGON AG271QX also has a remarkable gradient with no visible banding. The Dell S2716DG, on the other hand, has an option to introduce flicker so as to make the image crisper.
The AOC AGON AG271QX is slightly better than the ViewSonic XG2402. The AG271QX is better at displaying large areas of similar color, as it supports 10-bit color. However, the main advantage of the AGON AG271QX is the larger, higher resolution screen, that makes it much easier to see fine details in games and for multitasking.
The AOC AGON AG271QX is better than the ASUS PB277Q. The AGON AG271QX is a gaming oriented monitor, and has a much higher native refresh rate, so fast motion looks much smoother. The AOC also has better dark room performance with a higher native contrast ratio and better black uniformity.
The AOC AGON AG271QX and the Dell S2417DG have very similar performance. Both support variable refresh rate implementations. The S2417DG supports G-Sync and the AG271QX supports FreeSync. The Dell also supports black frame insertion (BFI) through the NVIDIA ULMB and this can help clear persistence blur. It also has better ergonomics that make it easy to position the monitor to your liking, whereas the AOC AGON has a larger screen size which makes it more comfortable to work on.
The AOC AGON AG271QX is better than the HP OMEN 27. The AOC AGON AG271QX has better ergonomics and this is very useful no matter the usage. It also has better black uniformity that improves the quality of blacks in a dark room. On the other hand, the HP supports the black frame insertion feature that helps reduce blur during fast action.
The AOC AGON AG271QX is better than the Dell U2717D for most users, unless you need a wider viewing angle. The AGON AG271QX has much better motion handling, with almost no motion blur and a fast refresh rate, with very little input lag. The IPS panel in the U2717D has a wider horizontal and vertical viewing angle, good for wall mounting or sharing your work with someone, but it has worse dark room performance.
The BenQ Zowie XL2540 is a 240Hz gaming monitor. Its higher refresh rate makes it even more responsive when playing FPS or other fast-paced games. It has similarly mediocre picture quality, and the accuracy of the image degrades rapidly when viewed at an angle. It also supports FreeSync, but across a larger range of frequencies. It is smaller at 25" though, and only 1080p resolution. If you only care about the most responsive image with lowest input lag, then go with the BenQ Zowie XL2540. For other usages, the larger screen area of the AGON AG271QX is better.
The LG 27UD58-B is a 60Hz IPS monitor with an impressive 4k resolution. It has better picture quality, mostly because the image remains accurate when viewed at an angle. The 4k resolution also improves multi-tasking performance as 4 x 1080p windows can be displayed on the same screen. It isn't as good for gaming though, due to the lower refresh rate (motion appears less smooth) and higher input lag. Overall, the LG 27UD58-B is a better choice for an office environment but for other uses, the AOC monitor is a better option.