Thursday, May 12 2022

VESA Launches Industry’s First Open Standard and Logo Scheme for Variable Refresh Rate Performance of PC Monitors and Laptops for Gaming and Media Playback

The VESA Adaptive-Sync Display Compliance Test Specification establishes clear benchmarks for consumers to compare the variable refresh rate performance of displays supporting the VESA Adaptive-Sync protocol

BEAVERTON, Oregon – May 2, 2022 – The Video Electronics Standards Association (VESA®) today announced the first publicly open standard for front-of-screen performance of variable refresh rate displays. The VESA Adaptive-Sync Display Compliance Test Specification (Adaptive-Sync Display CTS) provides a comprehensive and rigorous set of over 50 test criteria, automated test methodology, and performance mandates for PC monitors and laptops that support VESA’s Adaptive-Sync protocols.

The Adaptive-Sync CTS display also establishes a product compliance logo program comprising two performance tiers: AdaptiveSync Display, which focuses on gaming with significantly higher refresh rates and low latency; and MediaSync Display, which is designed for jitter-free media playback supporting all international broadcast video formats. By establishing the VESA Certified AdaptiveSync Display and MediaSync Display logo programs.

The VESA Certified AdaptiveSync Display logo is designed for gaming displays, focusing on significantly higher refresh rates and low latency panel performance. The logo includes a value indicating the maximum video frame rate obtainable for Adaptive-Sync operation when tested under factory default settings at native resolution. Logo values ​​will include 144, 165, 240, 360, etc.

VESA will allow consumers to easily identify and compare the variable refresh rate performance of displays that support Adaptive-Sync before purchase. Only displays that pass all Adaptive-Sync Display CTS and VESA DisplayPort™ compliance tests can qualify for the VESA Certified AdaptiveSync Display or MediaSync Display logos.

The VESA Certified MediaSync Display logo is designed for displays primarily focused on jitter-free media playback supporting all international broadcast video formats. There is no performance level associated with this logo as the product certification emphasizes freedom from jitter and flicker rather than high frame rate.

Over two years in development, VESA’s CTS and Adaptive-Sync logo display programs were created with input from more than two dozen VESA member companies spanning the display ecosystem, including major OEMs which supply monitors, graphics cards, processors, panels, display drivers and other components.

In 2014, VESA added Adaptive-Sync protocols to the VESA DisplayPort video interface standard to enable smoother, tear-free images for gaming and jitter-free video playback, as well as reduced power and greater efficiency in displaying rendered content at a wide range of frame rates. Since that introduction, VESA’s Adaptive-Sync technology has been widely adopted in the display industry and is now supported by all major GPU chipset vendors. However, while many PC and laptop displays currently support Adaptive-Sync protocols, until now there have been no open standards to measure the level of performance or quality of Adaptive-Sync support. ‘Adaptive-Sync for a given screen. VESA’s AdaptiveSync Display and MediaSync Display logo programs address this need, providing the consumer with a clear benchmark for the front-of-screen visual performance of variable refresh rate operation established by testing in accordance with the display. Adaptive-Sync CTS.

According to Seok Ho Jang, Vice President in charge of Computer Development Division at LG Electronics, “We believe that with VESA’s launch of its Adaptive-Sync display standard in the rapidly growing gaming market, we can expect to see even greater innovation in the gaming monitor categories.We are proud that the LG UltraGear™ brand has been involved from the start with the acclaimed LG UltraGear™ 27GP950 and 27GP850 models, the first monitors to receive VESA certification AdaptiveSync Display. LG also has new 2022 models on the way, which we believe will not only meet the high standards demanded by VESA performance testing, but are also well equipped to meet the expectations and diverse needs of today’s consumers. today.

Full validation of Adaptive-Sync performance

The VESA Adaptive-Sync Display CTS includes over 50 automated display performance tests covering several key variables, including refresh rate, flicker, gray-to-gray response time (including overshoot and undershoot limits). -overshoot to ensure high quality images), video frame drop and video frame rate jitter. As required by the VESA Adaptive-Sync Display CTS, all displays should be tested in the factory-shipped condition or factory-default mode configuration, as well as tested at room temperature, to ensure that the display is rated and certified under realistic use conditions. . Additionally, all displays that meet the VESA AdaptiveSync Display and MediaSync Display logo certification requirements must also be tested and certified to VESA’s DisplayPort standard. The majority of desktop and laptop GPUs introduced in the past two years are capable of supporting VESA’s Adaptive-Sync protocols. VESA encourages consumers to verify with their GPU vendor that their GPU and software driver allow Adaptive-Sync operations with VESA-certified AdaptiveSync and MediaSync display products by default.

Logo Program Qualifies Screen Front Performance Evaluation Premium

The VESA Certified AdaptiveSync Display logo has a performance level, which includes a value indicating the maximum video frame rate that can be achieved for tested Adaptive-Sync operation with the display’s factory default settings at native resolution (for example, AdaptiveSync Display 144 or 240). For the VESA Certified MediaSync Display logo, there is no performance level since the focus of the product certification for this logo is on no display jitter rather than high frame rate. Display vendors wishing to participate in the VESA Certified AdaptiveSync Display or MediaSync Display logo program can submit their products for testing at one of VESA’s Authorized Test Centers (ATC).

According to Roland Wooster, chairman of the VESA Display Performance Metrics Task Group responsible for the Adaptive-Sync Display CTS and representative of the Intel Corporation Association for HDR Display Technology and Adaptive Sync, “The Adaptive-Sync Display CTS builds on the foundation VESA laid with the introduction of Adaptive-Sync protocols eight years ago. It provides an open, industry-wide, brand-independent standard, backed by a logo program that gives consumers assurance that the displays they buy for gaming or for media playback will meet a clearly defined minimum set of screen front. performance criteria when used with an appropriate GPU. When designing the test specification and logo program, VESA explicitly set the bar high on performance criteria and testing methodology with more stringent criteria than many existing specification and logo programs. As with all of our standards, VESA will continue to develop and refine the Adaptive-Sync Display CTS to meet new display developments and market needs to enable further improvements in visual quality and user experience. for consumers.

Test AdaptiveSync MediaSync
Maximum Adaptive-Sync Operation
refresh rate range
≥144Hz ≥60Hz
Minimum Adaptive-Sync operation
refresh rate range
≤60Hz ≤48Hz
Test this default Overdrive
adjustment does not result in
Overshoot/undershoot
≤ 20% overshoot and
≤ 15% undershoot
(on any of the 16 test cases)
≤ 20% overshoot and
≤ 15% undershoot
(on any of the 16 test cases)
Average limit of 20 G2G tests
from a 5 × 5 matrix with
default overdrive
≤ 5 ms average over 20 tests N / A
Jitter (max) on low variability
refresh rate tests
-50dB -50dB
Jitter (max) with high variability
refresh rate tests
-50dB The test is not performed
as logo performance level mandate
Yes SuccessiveFrameDuration
Increase tolerance
is present,
minimum duration for the variable
8.5ms 1 millisecond
Yes SuccessiveFrameDuration
Decrease tolerance
is present,
minimum duration for the variable
9.75 milliseconds 1 millisecond
Frame-to-frame video jitter duration
for video from 23.976 to 60 Hz
frame rates
±0.5 milliseconds ±0.5 milliseconds


“end of press release”



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