Monitor testing and evaluation consists of formal and subjective quality tests and a practical evaluation of monitor design and features – connection selection, location, menus, options and general behavior. As part of the process, we use the monitor to perform tasks specific to its mission, such as daily productivity, video streaming, photo and video editing or different types of games (such as FPS or RPG). Note that we only report a fraction of our results, and that is usually necessary to adequately express the strengths and weaknesses of the monitor for particular uses.
The process begins with unboxing and setup; It’s connected to us windows– Test based desktop (or relatively high end mac In cases where this is required) with a current generation Intel Core i9 processor and high-end Nvidia GeForce graphics. Both the computer and monitor plug directly into a wall outlet to prevent any power issues that may affect performance.
We generally prefer to use our own cables over factory-supplied cables because they are a known quantity and tend to be of a higher quality; If we encounter any problems, we double check that the manufacturer’s cables are used. DisplayPort is our primary connection for testing. If the monitor identifies any console-specific capabilities, we will connect them to the relevant console(s), Xbox Xbox X wow PS5 via HDMI.
The location and accessibility of communications is a major design concern for some people.
Laurie Groenen/CNET
Before any test begins, we photograph the default settings and all menu options for reference and to determine the full set of tests we’ll need to run on that particular screen given its specific capabilities; The intensity of the test depends on the capabilities of the monitor and screen, the back-lighting technology used, and the reviewer’s judgment. We disable power saving actions where applicable, which can affect brightness and related actions (option is mandatory According to California law). We use a subset of these tests to evaluate and operate laptop monitors plugged into a wall outlet and battery using the default profile but with screen timeouts disabled.
We also log any panel-related information – manufacturer specifications for resolution, color gamut and profiles, refresh rates etc. – that may influence our assessment against manufacturer claims. While we review the display with the company’s stated target market in mind, we also consider suitability of the display for other uses that may apply. Where possible, we download drivers and color profiles for your monitor.
what we measure
All measurements are made using the latest version of Calman Ultimate portrait display Software using X-Rite i1Display Pro Plus (renamed Calibrite ColorChecker Display Plus) and a variety of correction suites included, with additional HDR testing using a Murideo Six-G Style generator and/or Client3 HDR styles within Calman. We periodically check the accuracy of the colorimeter against Konica Minolta CS-2000 Our used spectrophotometer TV test.
Stand design, features, and cable management are important when looking at monitors.
Laurie Groenen/CNET
Our test lab was equipped with blackout curtains to completely block out ambient light, though full blackout isn’t necessary since the colorimeter sits directly on the screen and isn’t affected by low light. The room has natural light and various artificial sources to assess normal use.
Color accuracy results are reported in Delta E 2000 units. We run most of our testing (as we know results vary) at 100% and default hardware brightness levels.
Primary tests – the ones we run on every screen, regardless of intent or price – include:
White point, brightness (peak and minimum), contrast, gamma for sRGB, and the original color space measured across 21 gray spots (0–100%), are rounded to the nearest 50 kb as long as there are no significant differences. A contrast of plus or minus 200K around the target color temperature is acceptable for all but the most color-sensitive monitors. Gamut coverage and accuracy for the sRGB and native color space using Calman’s standard Pantone correction suite as well as corrections for grayscale and skin tones. We add blur busters” Movement tests For gaming monitors to judge motion defects (such as ghosting) or issues with the refresh rate.
If the screen has menu options beyond the basics, we run the same basic checks for the following settings as they become available:
All color presets All game presets (eg FPS). We also test brightness for Pixel Boost and Motion Blur reduction modes (which tend to reduce brightness considerably).
For HDR, we add test specific HDR presets (such as Game HDR or Cinema HDR) and brightness for window sizes 1%, 5%, 10%, and 100% of the screen.
Finally, there are tests that we perform only when needed to understand the measurements we have obtained or to confirm that the artifacts we see – in particular the asymmetry – are not fictional.
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