NVIDIA explained changes in the requirements of the G-Sync Ultimate standard

NVIDIA explained changes in the requirements of the G-Sync Ultimate standard


NVIDIA has commented on lower requirements for G-Sync Ultimate monitors. Earlier in the media, reports began to appear that the manufacturer did it without an official announcement.

Let us briefly recall that the story began with the fact that the list of monitors with declared support for G-Sync Ultimate on the NVIDIA website showed up Acer X34 S model with 400 and 550 cd / m2 nominal and peak brightness2 respectively, as well as a couple of models of monitors from other manufacturers with a declared peak brightness of 600 cd / m22… This fact came into conflict with the description of the G-Sync Ultimate standard put forward by NVIDIA, since earlier the manufacturer demanded brightness from 1000 cd / m22which in turn complies with the VESA DisplayHDR 1000 certification.

The initial requirements for monitors with support for three types of G-Sync looked like this (now they are no longer relevant):

Resource Overclock3D contacted NVIDIA for comment for details. The company responded to the request as follows:

“Late last year, we updated the G-Sync Ultimate specification to add support for new OLED and Edge LED display technologies. All G-Sync Ultimate monitors feature advanced NVIDIA G-Sync processors […] Although the original displays with G-Sync Ultimate had a brightness of 1000 cd / m22and support for Full Array Local Dimming (FALD) technology, the latest displays, including OLEDs, offer nearly infinite contrast support at a claimed brightness of just 600-700 cd / m22as well as advanced multi-zone lighting technologies, including Edge LED, which deliver these 600-700 cd / m22 brightness. At the same time, brightness and VESA DisplayHDR1000 certification have never been defining aspects of the G-Sync Ultimate standard. Conventional G-Sync-enabled displays are also equipped with NVIDIA G-Sync processors. As for the monitor model Acer X34 S, it was added to the list of displays with G-Sync Ultimate support on our website by mistake. It should be in the list of displays with normal G-Sync support. “, – the company noted.

There are several conclusions to be drawn from NVIDIA’s post. First, the manufacturer actually admitted that new displays (specifically OLEDs) with a peak brightness of less than 1000 cd / m22but using alternative backlights can provide the right contrast level to meet the G-Sync Ultimate standard. Secondly, the company indicated that monitors with G-Sync Ultimate are determined by their G-Sync processor, not overall brightness.

Unfortunately, the company still does not provide a complete list of changes in the requirements for the G-Sync Ultimate standard (the site contains the old requirements), so the definition of the term “realistic HDR” mentioned on the English version of the NVIDIA site still raises some questions. On the Russian version of the site, the description of the technology is as follows:

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