AdaptiveSync Display: Variable Refresh Rate Becomes Monitor Standard

VESA, which is responsible for monitor standards, introduces a logo program for the variable refresh rate of PC monitors and laptops. If the monitors meet the prescribed test criteria, they can bear the new “AdaptiveSync Display” and “MediaSync Display” seals.

The new certification program aims toclear standards for consumers“be defined so that these”Performance of variable refresh rate displays“ 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 possible refresh rate with Adaptive-Sync active. For example, there is the “AdaptiveSync Display 144” logo for a monitor that supports Adaptive-Sync up to 144 Hertz.

VESA logo: AdaptiveSync Display with maximum refresh rate as a number
VESA logo: AdaptiveSync display with maximum refresh rate as a number (Image: VESA)

In the test procedures for certification, however, other criteria would be taken into account in addition to refresh rate. The following items are given by way of example:

  • refresh rate
  • sway
  • Gray to gray response time*
  • Video frame drop
  • Video frame rate jitter

*The response time must also take into account limit values ​​for so-called overshoot and undershoot, in order to ensure high image quality.

VESA Logo: MediaSync Display
VESA logo: MediaSync display (Image: VESA)

Refresh rate is irrelevant to the “MediaSync Display” logo, as it only signifies a lack of display jitter during media playback and is less relevant for gaming monitors than media displays.

Instructors must pass all tests

According to the VESA press release, monitors must pass all tests for one of the seals and also be certified under the guidelines of the DisplayPort standard, which includes Adaptive-Sync technology, which is part of version 1.2a of the DisplayPort standard. since May 2014 and allows variable refresh rates. Adaptive-Sync for AMD FreeSync on Radeon graphics cards and Nvidia G-Sync Compatible on GeForce graphics cards is used to match the frame rate of the graphics card.

Visit the website for more information on testing requirements and a list of monitors already sporting the new logos.

The list currently only contains two 27-inch models from LG’s Ultragear series: the 27GP850 with QHD and 165Hz and the 27GP950 with 144Hz and UHD. Others should follow very soon.

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