Color Accuracy and Gamma

Color space and screen uniformity

We start our tests by measuring color space and screen uniformity. Uncalibrated performance means the out-of-the-box settings a monitor ships with. Calibrated performance is what results after the monitor has been put through our DataColor Spyder calibration process. Our aim with calibration is to be at a Gamma of 2.2 with a target 6500k color temperature and a 90cd/m2 brightness. Luminance is candela per square meter (cd/m2) also described as 'nits'.

The Asus RoG Swift PG43UQ is a truly proper HDR panel and meets the requirement of a larger color space. By default, however, the screen is in sRGB (Racing) mode. If you want a wider color range, you will have to activate it yourself in the OSD menu.

We measured the screen in default settings, that is the Racing mode, also the closest to sRGB color gamut.

For our first baseline test in the default gamut (sRGB) mode, we reach 100% of the sRGB color gamut, which is really good. But as explained, we can enable a wide color range in the monitor, so we do that and measure again. Once we measure with an AdobeRGB gamut, we retrieve 86% of the AdobeRGB color space, which is very comparable but a notch lower than a DCI-P3 gamut which is advertised at 90% for this monitor. 

Gamma

These monitors come factory calibrated for you, the next tests will back that fact. The average gamma value is also good with a measured deviation of 0.01 from 2.2

Gamma uncalibrated is spot on at 2.2, there is an allowance deviation of 10%, that is near perfect. This is the monitor untouched out of the box. And of course, you can alter and tweak anything to your liking yourself.  

Monitors these days are factory calibrated monitor, the color accuracy should be really good out of the box and with this average delta we'd say that the default mode is color calibrated.