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Acer XB273GX 1080p 240Hz Gaming Monitor Review

In the following section, we’ll be taking a closer look at the overall color accuracy of this panel. As this is a gaming monitor, it’ll be interesting to see how accurate the colors are. Often, manufacturers will generate custom color presets that help increase vibrance in gaming-type scenarios. Whilst this is great for said gaming, it is normally incredibly detrimental to color accuracy.

For that reason, we’ll be taking a closer look at the color presets and the monitor’s general accuracy.

Preset White Point Black Depth Contrast Ratio Average ΔE*00 Gamma
IDEAL 6500K 0.00cd/m² Infinite 0.00 2.2
Out The Box (Standard Mode) 6586K 0.095 cd/m² 3314.6:1 5.51 2.14
sRGB 6610K 0.0353 cd/m² 2348.8:1 0.9 2.14
DCI-P3 6581K 0.0512 cd/m² 3021.7:1 5.93 2.14
Adobe RGB 6576K 0.05 cd/m² 3093.1:1 0.62 2.14

Like always, we ran a quick preliminary color test on the Acer XB273GX right out of the box. This monitor was set in ‘Standard’ color mode with a luminance reading of 166 candelas – slightly over the recommended for daily viewing.

That said, we wasted no time and threw the XB273GX through a quick color test. To my surprise, the out of the box settings were actually pretty accurate. As you can see from the table above, we recorded a decent white point and black depth (0.161), alongside a 994:1 contrast ratio and 2.13 gamma. Most impressive, however, was the 1.72 average deltaE. Whilst this isn’t the best we’ve ever seen, it’s certainly acceptable for lightweight color-accurate work within the sRGB spectrum.

We moved onto the Action preset, seemingly tailored towards fast-paced gaming. As this preset was more to do with response, I was expecting the color accuracy to take a dip – however, that was not the case. We recorded almost identical white point and similar black depth. Contrast ratio didn’t move all that much and average deltaE stayed at around 1.71. Again, I was surprised with the accuracy of these two presets, mainly because manufacturers normally prioritize visual experience over color accuracy – especially in gaming monitors.

We put the built-in sRGB profile to the test shortly after, with results impressing once again. We recorded a perfect white point and excellent black depth using this preset. Contrast ratio was recorded at a high of 998:1 and average deltaE dropped to a cool 0.83. Gamma was set to 2.17, making this preset the best all-round option for color-accurate work (within the sRGB spectrum).

Preset White Point Black Depth Contrast Ratio Average ΔE*00 Maximum ΔE*00 Gamma
IDEAL 6500K 0.00cd/m² Infinite 0.00 0.00 2.2
Calibrated Profile 6109K 0.0808 cd/m²” 3811.5:1 0.31 1.99 2.18

We wasted no time and calibrated the monitor in ‘User’ mode to see how accurate we could get the monitor to be. We altered the RGB settings to 49/45/51 and reduced the brightness to 20 for best results.

After calibration, the XB273GX performed to an incredibly high standard, boasting a perfect 6500K white point and low 0.18 black depth. The contrast ratio of the panel did take a hit after calibration, now only reading 655:1. That said, we were still able to reduce the average deltaE to 0.28 – with a max reading of 1.44.

Panel Uniformity

Panel uniformity is a test we run to check how uniform the luminance and colors are across the entirety of the screen. During this test, the center square is used as the reference space. Every other square is then tested to see how far it differentiates from the reference.

In an ideal world, we want every square to be green, meaning it hasn’t broken the differential threshold – something we can set at the start of the test.

Note: results will differ from panel to panel.

Panel uniformity XB273GX

Panel uniformity, for the most part, was extremely good. As you can see from the image above, there wasn’t a single segment that showcased a red score – exceeding the nominal tolerance for luminance and color uniformity. On the contrary, actually, as most of the panel scored a green score.

That being said, there was a section of the panel that did fall into the amber scoring. Whilst this wasn’t visible to the human eye, it could potentially be picked up by a particularly sensitive eye.

Viewing Angles

The viewing angles on this IPS panel were, as expected, pretty good. Viewing the panel from obscure angles was acceptable, but brightness did seem to shift at extreme angles.

That being said, you could easily use this monitor for dual gameplay.

Color Gamut

As part of the calibration process, the DisplayCal will give an accurate measurement of the color gamut the monitor can provide. Below are the results of the color gamut test:

Xb273GX color gamut

As for color gamut coverage, the XB273GX was fairly standard – to be expected from a monitor that didn’t market any color gamut what so ever.

Looking at the results, this monitor provided a solid 98.2% sRGB coverage (113.1% volume), alongside a 72.1% Adobe RGB and 79.5% DCI-P3 coverage.

Xb273GX color gamut graph 1

Whilst this monitor may not win any awards for color quality, it certainly provides enough color accuracy to enjoy realistic color portrayal – especially in lesser spectrums.

You can see where the XB273GX color gamut extends past the sRGB space (showcased by the dotted line).

Maximum And Minimum Brightness

We ended the color accuracy and picture quality testing by checking the maximum brightness, minimum brightness, and 120 candelas level on this panel. The results are below:

Brightness Candelas
100% Brightness 434.21 cd/m²
0% Brightness 9.4 cd/m²
19 Brightness 120 cd/m²

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