New Adaptive-Sync layers eliminate misleading response times and flicker


So, you’re looking at a monitor or laptop that says it has Adaptive-Sync or variable refresh rates. It might be Nvidia G-Sync or AMD FreeSync. The vendor may have been detailed enough to include the Adaptive-Sync range, which indicates the refresh rate range, as well as the response time number and overclocking feature that promises smoother video playback. But then you see a bunch of other monitors and laptops claiming the same thing. How do you decide which monitor will provide a better media experience?

To help, the Video Electronics Standards Association (VESA) launched a certification program Monday for PC and laptop monitors equipped with Adaptive-Sync. The Adaptive-Sync Display CTS specification is intended to provide more insight into screen tear-resistant technology.

The software, which has already been built on some products, has more than 50 standards for its two levels: MediaSync Display, which focuses on video playback and requires at least an Adaptive-Sync range of 48 to 60 Hz, and Adaptive-Sync Display, which focuses on gaming and requires Adaptive Jitter -Sync from at least 60 to 144 Hz.

A deeper look at Adaptive-Sync performance

In 2014, VESA—a nonprofit group of hardware, software, computer, and component manufacturers that also sets DisplayPort, DisplayHDR, and VESA standards—added Adaptive-Sync protocols to the DisplayPort video interface. Adaptive-Sync, which includes monitors like Nvidia G-Sync and AMD FreeSync, should make video playback smoother by eliminating screen tearing, flicker, and flicker. Adaptive-Sync also seeks to accommodate reduced power usage and efficiency when dealing with playing content in different frames.

Adaptive-Sync is now present in all types of monitors, including gaming and general use. It is also supported by major GPU vendors. Nvidia and AMD bring more improvements to their graphics cards and may have other image quality requirements, depending on the type of G-Sync or FreeSync.

With the goal of providing a more detailed preview of the expected Adaptive-Sync performance for a monitor or laptop with default settings, VESA – after two years of development with more than two dozen members, including Nvidia, AMD, Intel, and display makers – releases drivers for monitors and CPUs The other components are the Adaptive-Sync certification program with more stringent requirements. You can be an Adaptive-Sync, G-Sync, and/or FreeSync display without the new MediaSync display standards or Adaptive-Sync display standards. But getting one of the new logos means that the display has undergone extensive VESA testing, which we’ll get into soon.

But before that, we should note that monitors require DisplayPort to get one of the certifications. This excludes HDMI-only Adaptive-Sync displays from getting the new logo. This step becomes even more interesting when you consider that HDMI 2.1 introduced variable refresh rates to the standard.

Increased requirements for both levels

New VESA Adaptive-Sync and MediaSync certification logos.
New VESA Adaptive-Sync and MediaSync certification logos.


Adaptive-Sync scopes are set as prerequisites for new layers. The MediaSync Display layer requires an Adaptive-Sync band of at least 48 Hz and up to at least 60 Hz. For the gaming-focused Adaptive-Sync display layer, the range is 60 to 144 Hz.

But this is just the beginning of what a monitor has to go through to get a VESA logo.

manhood test

To obtain MediaSync or Adaptive-Sync certification, a monitor must display less than 1 millisecond of vibration, which is far less than what is supposed to be visible to the human eye, according to VESA.

This number must be met across 10 international frame rate standards: 23.976 Hz (Hollywood movie); 24, 30, 60 Hz (content is usually shot on consumer cameras, such as YouTube videos or whatever plays locally), 25 Hz (UK TV), 29.97 Hz (US TV), 47.952 Hz, (which is rare but Used in some films), 48 Hz (also used in rare films), 50 Hz (British sport), 59.94 Hz (American sport).

Next, VESA tests the monitor at the lower end of the monitor’s Adaptive-Sync range. If your monitor has an Adaptive-Sync range from 40 to 60 Hz, for example, VESA will test it at 40 Hz, though the MediaSync Display layer only requires a 48 Hz band, and Adaptive-Sync layer 60 Hz. If the monitor’s Adaptive-Sync range has a higher minimum than the certification requires, the VESA frame doubles frames that are slower than the lower limit.

One common cause of shake is the 3:2 drop, which is used to display Hollywood movies that were produced at 23.976Hz and result in a drop of one frame per second. VESA certification seeks to eliminate the need for a 3:2 pulldown.

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