AOC 90-series review: business-like and nice for home

Excellent price-performance ratio and modern design


Competitors and alternatives: battle with Iiyama

Usually we only show the competitors and alternatives in the graphs, which are always filled with comparable models. However, AOC explicitly positions their 90-series in the market as direct competitor of the Iiyama 92-series, of which we have tested both a 24-inch full hd model as well as a 27-inch wqhd-model, the XUB2492HSU-B1 and the XUB2792QSU-B1 respectively. Aside from that Iiyama also has another monitor which is an interesting alternative for the Q2790PQU. For those of you wondering why we do not add more models to this comparison: in this segment there is little other competition. Only Dell can compete with these two in terms of price-performance, but we cannot often test models that they manufacture. Samsung and LG have little to no focus on wqhd, or are mainly looking at different segments (the Samsung 850-series is clearly higher positioned, but certainly worth covering - keep a close eye on the site). Business models manufactured by Acer and Asus never reach our lab and HP practically only sends us high-end monitors. 

In short, reason enough to give special attention to how AOC and Iiyama compare with one another in this segment, where we have to state beforehand that both sides offer excellent models, each with their own advantages and also sides that are not as great.  


When we begin with the 24-inch models, we can compare the AOC I2490PXQU with the Iiyama ProLite XUB2492HSU-B1. Both have a full hd-panel based on ips-technology. The AOC has an MSRP of 159 pounds / 179 euros, while the Iiyama has an MSRP of 168 pounds / 189 euros. Looking at the physical characteristics both of them have a 'bezel-less' design, vga-, hdmi- and displayport-connectors, audio in- and outputs and integrated speakers. AOC wins in terms of connectivity, because the usb hub is 3.0 instead of 2.0, and it has four instead of two connectors. In terms of ergonomics both of them are nearly identical, but the AOC model takes up marginally less space on the desk. 

Iiyama ProLite XUB2492HSU-B1 AOC I2490PXQU
Which design you prefer is something we cannot decide for you, but the AOC is slightly narrower in terms of its base.

Looking at the test results, Iiyama holds the best cards in terms of response times, with comparable overshoot the optimal transition times are clearly lower which means that the XUB2492HSU has an advantage if gaming is important for you. In terms of power consumption Iiyama wins again, albeit barely: the differences are small, less than 2 watts in the most extreme case, but if you purchase thousands of monitors at the same time this might be something to consider. In terms of brightness and contrast Iiyama has a slight edge, with a lower minimum and higher maximum brightness. The difference in terms of contrast is insanely small and the differences are too small to pick a clear winner. With the uniformity measurements we see that the Japanese brand might be able to realize a better uniformity of black, but AOC clearly performs better with the - in our opinion more important - uniformity of white. However, the viewing angles of the XUB2492HSU are clearly better, although in office environments it might not be an advantage if one can easily watch what the user is doing. The colour quality of both monitors is surprisingly good (in this price segment you would often find monitors that performed worse). AOC has better results for grey while Iiyama has better results in the sub colours. It would nearly be a draw, but AOC wins on points because of the more neutral colour temperature. 


We do not have any equivalent comparison material for the I2790PQU, but Iiyama does have a direct competitor for the Q2790PQU in the form of the ProLite XUB2792QSU-B1. Iiyama also has a very interesting model for the budget conscious buyer with their XB2788QS-B1, but that model has an older design and does not have a usb hub. You can find it in the graphs on the previous pages, and we will discuss it separately as well, but for now we focus on the XUB2792QSU and the Q2790PQU.

The XUB2792QSU costs about 320 pounds / 359 euros to 328 pounds / 369 euros, while the Q2790PQU costs slightly less at 311 pounds / 349 euros, and we expect that AOC will lower the price of this model even further - so you should keep an eye on our Price Comparison. However, at the moment the price difference is not big enough to pick a preference based on their price.  

To start off with the basic characteristics, it stands out the Iiyama offers Freesync, albeit with a limited range of 30-70Hz - this is not enough for LFC, but it is nice to have. In terms of connectivity Iiyama offers dvi instead of vga; dvi is more useful for actual use, but on the other hand vga is quite pleasant to have as legacy-solution for laptops. Both connectors have their advantages. AOC does offer an extra hdmi-connector when compared with the Iiyama. Furthermore in terms of the physical characteristics AOC offers two extra USB 3.0-connectors, but with Iiyama the two connectors that are present are easier accessible, because they are placed on the side. The AOC monitor can be set marginally higher and weighs one kilogram less. The latter will probably be appreciated by the workplace support employee that has to add a new monitor to hundreds of workplaces.

Iiyama ProLite XUB2792QSU-B1 AOC Q2790PQU
Iiyama has two usb 3.0 connectors on the side, AOC offers four - although these are on the back.

For the test results we once again start with the response times, simply because these are at the top of the table. For these business monitors it is certainly not a decisive aspect, and although the column is greener for Iiyama than for AOC, the differences are so small that we can safely say that there is no difference in practice. The power consumption is clearly lower with the Japanese brand, the difference is also bigger than with the 24-inch competitors. At 150 cd/m² this is about 2 watts in disadvantage of AOC. Once again this is only significant when using hundreds of monitors at the same time.

Because of the better black value Iiyama has a better contrast, the minimum brightness on the other hand is lower with AOC which means it is better. These are not differences on which you should base your choice, but they are still worth mentioning. The uniformity of white is slightly better for AOC, while Iiyama performs a lot better with black. The viewing angles of AOC are better across the board, horizontally they are a lot better. In terms of colour quality and grey deviation the Q2790 is simply better, where the colour space is closer to DCI-P3 than sRGB.

AOC Q2790PQU Iiyama ProLite XUB2792QSU-B1
Because of an advanced backlight the colour space of the Q2790 is clearly bigger when compared with the XUB2792QSU.


three products discussed in this review

  Product Lowest price


23.8 inch, 1920x1080, 93 ppi, IPS, 60 Hz, HDMI input, DisplayPort input, 4 ms, 250 cd/m², 1000 : 1

Specifications Test results Reviews Prices


Avg. £176.14
3 shops, 3x stock


27 inch, 1920x1080, 82 ppi, IPS, 60 Hz, HDMI input, DisplayPort input, 4 ms, 250 cd/m², 1000 : 1

Specifications Test results Reviews Prices


Avg. £217.37
4 shops, 3x stock


27 inch, 2560x1440, 109 ppi, IPS, 60 Hz, HDMI input, DisplayPort input, 4 ms, 350 cd/m², 1000 : 1

Specifications Test results Reviews Prices


Avg. £343.40
5 shops, 5x stock

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