VESA, which is responsible for monitor standards, introduces a logo program for the variable refresh rate of PC and laptop monitors. If the monitors meet the prescribed testing criteria, they can carry the new “AdaptiveSync Display” and “MediaSync Display” seals.
The new certification program aims toclear rules for consumers“be defined in such a way that these”Performance of Variable Refresh Rate Displays“ You can compare better.
More than 50 test procedures for certification
Supposedly, more than 50 automated display performance tests are the prerequisite for issuing the VESA “AdaptiveSync Display” seal, which also contains the maximum refresh rate possible with Adaptive-Sync active. For example, there is the “AdaptiveSync Display 144” logo for a monitor that supports Adaptive-Sync up to 144 Hertz.
However, in the testing procedures for certification, other criteria would count in addition to the update frequency. The following are given as examples:
- Update frequency
- flicker
- Gray to gray response time*
- video frame drop
- Video frame rate jitter
*The response time must also take into account the limit values for so-called overshoot and undershoot, so that a high image quality is guaranteed.
Refresh rate is irrelevant for the “MediaSync Display” logo as this only indicates a lack of displayBe nervous in media playback and is less relevant for gaming monitors than it is for media displays.
Monitors must pass all tests.
According to the VESA press release, monitors must pass all tests for one of the seals and also be certified to the guidelines of the DisplayPort standard, which includes Adaptive-Sync technology, which has been part of version 1.2a of the standard. DisplayPort. since May 2014 and allows variable refresh rates. Adaptive-Sync for AMD FreeSync on Radeon graphics cards and compatible with Nvidia G-Sync on GeForce graphics cards is used to match the frame rate of the graphics card.
closer Information about test conditions. as well as a list of monitors that already bear the new logos are available on the website adaptivesync.org.
The list currently only contains two 27-inch models from LG’s Ultragear series: the 27GP850 with QHD and 165 Hz and the 27GP950 with 144 Hz and UHD. There will likely be more very soon.
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