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Our main test involves using an X-Rite i1 Display Pro Plus colorimeter and utilising Portrait Display's Calman Ultimate software. The device sits on top of the screen while the software generates colour tones and patterns, which it compares against predetermined values to work out how accurate the screen is.
The results show:
- A monitor’s maximum brightness in candelas or cd/m2 at various levels set in the OSD.
- A monitor’s contrast ratio at various brightness levels in the OSD.
- Gamut coverage, primarily focusing on sRGB and DCI-P3 colour spaces.
- Greyscale accuracy, measured across 20 shades, with an average colour balance reported.
- The exact gamma levels, with a comparison against preset settings in the OSD.
- The colour accuracy, expressed as a Delta E ratio, with a result under 3 being fine for normal use, and under 2 being great for colour-accurate design work.
We first run these tests with the display in its out-of-the-box state, with all settings on default. If there is an sRGB emulation option or other useful mode then we may test that too. We then calibrate the screen using the Calman Ultimate software and run the tests again.
You can read more about our test methodology HERE.
Default settings
Brightness and Contrast (Full Screen)
| OSD Brightness | White Luminance (cd/m2) | Black Luminance (cd/m2) | Contrast Ratio |
| 0% | 25.9 | 0.00 | ~Infinite |
| 25% | 95.4 | 0.00 | ~Infinite |
| 50% | 164.5 | 0.00 | ~Infinite |
| 75% | 226 | 0.00 | ~Infinite |
| 100% | 258.1 | 0.00 | ~Infinite |
Kicking things off with brightness and contrast testing, it is worth clarifying that we did select the User mode for this test – out of the box, the MPG 272URX defaults to the Eco mode which caps brightness slightly lower than what can be achieved with the User mode.
Still, the results are about as expected – we see a peak brightness of just under 260 nits, with a minimum of 26 nits.
Luminance is also very steady regardless of the window size (APL). Some monitors will show a noticeable drop off in brightness as the window size gets bigger, even in SDR, but that is not the case for the 272URX.
Gamut (CIE 1976)
| Colour space | Coverage (%) |
| sRGB | 99.8 |
| DCI-P3 | 98.9 |
| Adobe RGB | 96.2 |
| Rec.2020 | 76.9 |
We see extremely very wide gamut coverage as we'd expect from a QD-OLED panel, it well exceeds the sRGB space and delivers 98.9% coverage of DCI-P3, alongside 96.2% reporting of the AdobeRGB colour space and 76.9% coverage for Rec.2020.
Greyscale
As for default greyscale performance, the 272URX has been supremely well configured from the factory. Colour balance is very good indeed, averaging 6465K, while gamma is also very accurate, closely hugging the 2.2 target for all shades, averaging 2.196. That results in a greyscale average deltaE 2000 of just 1.1, a phenomenally good result considering this is before any tweaks or adjustments.
Saturation
Looking at our saturation sweeps, as we'd expect from a QD-OLED monitor we do see high levels of over-saturation compared to the sRGB space, though things are more accurate compared to the DCI-P3 space.
Colour Accuracy
That carries over to our colour accuracy testing, with an average dE2000 of 4.14 relative to the sRGB space, though this improves to an average deltaE of 2 when looking at the DCI-P3 results.
sRGB Emulation Mode
MSI does include an SRGB mode though if you don't want such an over-saturated experience, and it does a great job at clamping the gamut, while greyscale performance is still highly impressive. The saturation and colour accuracy average deltaEs are now below 1 though, indicating stellar results across the board, so if you want to work in the sRGB space, this is one of the best emulation modes I have tested.
Calibrated Results
Of course, for the best possible results a full calibration will be required, and this improved things further – the greyscale average deltaE hit just 0.57, and both saturation and colour accuracy results saw improvements too. It's not really necessary for gaming, but if you want to do colour-sensitive work, this panel is capable of some terrific results.
