We ran our standard benchmark tests using the MO27Q28G Portrait Screens‘ Calman calibration software and a Klein K-10A colorimeter. We put it through a series of games to measure input lag and evaluate real-world performance. Unless otherwise noted, we took these readings with Gigabyte’s out-of-the-box settings.
(Credit: Joseph Maldonado)
In our first test, we compared brightness using the standard SDR profile of the MO27Q28G. Under these conditions, we measured a maximum brightness of 312 nits at a 10% window size, corresponding to an SDR rating of 335 nits. This number improved when switching to HDR. According to the HDR 500 rating, we recorded 500 nits at a window size of 1%. HDR brightness reached 561 nits at 10% window size.
For the next test, I moved away from our default settings protocol as I wanted to test Gigabyte’s maximum HDR brightness claim. I set the HDR 1500 preset, set the window size to 2% and measured 1311 nits. It’s not quite the 1,500 nits of maximum HDR brightness that Gigabyte promises, but it’s not so far off that you can’t hit it with a few tweaks to the settings.
When the monitor’s HDR 1500 mode is enabled, you have several options to adjust HDR brightness, as well as Brightness, Color Enhancement, and Darkness Enhancement. Light and Color Enhance have three levels, while Dark Enhance only has an on/off option. The Light Boost was immediately noticeable and is definitely something you’ll want to adjust, as I thought the basic HDR was a bit weak for my taste. But once I found a combination of settings I liked, I was impressed. You’ll definitely want to experiment with settings when playing games designed for HDR, e.g Cyberpunk 2077.
The MO27Q28G has a nominal contrast ratio of 1,500,000:1. This sky-high number shows the display’s ability to produce deep blacks as well as bright whites, resulting in improved image quality in both bright and dark scenes. Given this, since OLED contrast ratios are essentially infinite, contrast ratio ratings in the millions have little practical comparative value.
(Credit: Calman)
Finally, the color gamut test: I found that the MO27Q28G covered 98.5% of the Adobe RGB color space (see chart above), 166% of the sRGB gamut (see chart below), and 95.4% of the DCI-P3 gamut. That’s excellent color coverage, despite what we’ve come to expect from OLED panels.
(Credit: Calman)
