VESA updates the Adaptive-Sync Display CTS standard

The Video Electronics Standards Association (VESA) has announced a significant upgrade to its inaugural open standard for Variable Refresh Rate (VRR) performance in gaming and media playback— the already published Adaptive-Sync Display Compliance Test Specification (Adaptive-Sync Display CTS).

With this update, the standard transitions to version 1.1, boasting more comprehensive and robust testing features. These enhancements include an extension of gray-to-gray (G2G) testing from a 5×5 to a larger 9×9 subset testing matrix, effectively tripling the quantity of test scenarios. Additionally, the antiquated fixed percentage limits have been supplanted by values based on perceptual quantization (PQ) to more accurately reflect human light sensitivity.

Manufacturers can now certify their display products in accordance with these new specifications. VESA allows products to continue being certified under version 1.0 requirements until the end of August 2023, to facilitate product redevelopment under version 1.1 stipulations within this period. To identify certified products, one may visit, for instance, this page, which includes products certified under versions 1.0 and 1.1.

The Adaptive-Sync Display CTS establishes a set of product certification standards, namely AdaptiveSync Display and MediaSync Display. The former gauges the high refresh rate and low latency gaming performance of display devices, while the latter caters to media content in various international broadcast video formats. This certification offers a comprehensive, scientific, and stringent testing scheme, encompassing over fifty testing standards, methodologies, and performance requisites.