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Uncalibrated – Maximum Backlight Level
We have a variety of HDR monitors in the comparison group, covering a wide range of price points. There is the CV27Q’s cheaper brother, the Aorus CV27F, and ViewSonic’s Elite XG350R-C ultra-wide. Moving up the price scale are the Acer Predator XB273K and Acer Nitro XV273K. At the premium end is the Asus PG27UQ with a full-array backlight.
The CV27Q hits 385.6 nits brightness with SDR content, which is plenty for SDR content, even if you’re in a brightly-lit room. With a super-low black level of just 0.0538 nit, it achieved a remarkable contrast ratio of 7,165:1. Perhaps some sort of dynamic contrast feature is at work here even though that option was turned off in the OSD. You’ll see what we mean in the ANSI test below.
After Calibration to 200 nits
Calibration to 200 nits brightness (see our recommended settings) reduced the static contrast ratio from 7,165:1 to 5,707.2:1. But that’s still higher than expected, even for a VA panel, especially given the scores posted by the XG350R-C. 2,000-3,000:1 is the average value we’ve observed among VA displays.
The ANSI test results, an excellent 2,001.2:1, give a more real-world assessment of the CV27Q’s contrast. Our test pattern is a nine-box checkerboard that alternates between 0% and 100% brightness with an average level of 50%. This more closely represents actual content than the earlier static test, which uses full-field patterns. From this, we conclude that the CV27Q’s contrast performance is on-par with other VA-based gaming monitors.
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