Update: The following response was received from Nvidia in response to reports of G-Sync Ultimate specification changes:

Late last year, we updated G-SYNC Ultimate to include new display technologies such as OLED and edge-lit LCD.

All G-SYNC Ultimate displays feature the advanced NVIDIA G-SYNC processor to deliver a great gaming experience, including lifelike HDR, stunning contrast, cinematic colors, and ultra-low latency gameplay. The original G-SYNC Ultimate display was 1000 nits at FALD, but modern displays like OLED deliver infinite contrast at only 600-700 nits, and advanced multi-zone edge-lit displays deliver amazing G-SYNC Ultimate is by no means defined by knit alone, nor does it require VESA DisplayHDR1000 certification. Regular G-SYNC displays also feature NVIDIA G-SYNC processors.

The ACER X34 S monitor was incorrectly listed as G-SYNC ULTIMATE on the NVIDIA website. It should have been listed as "G-SYNC" and the web page has been corrected.

Nvidia has certainly not backed down on this.

But while G-Sync Ultimate may not have been defined solely by nits, it was one of the benefits most heavily marketed to customers since its introduction in 2019, even if it technically fell outside the requirements of VESA's DisplayHDR 1000 certification It is certainly true that.

Nvidia's website specifies "brightness in excess of 1000 nits" as a unique selling point for G-Sync Ultimate through the end of 2020, and a table defining "best HDR 1000 nits" as the sole differentiator between G-Sync grades There is even a

Original article Nvidia has quietly lowered the HDR requirement for the highest G-Sync Ultimate specification. Twitter user PCMonitors spotted a recent subtle change in the text on Nvidia's website, revealing that the top specification requirement for G-Sync Ultimate has been downgraded from VESA DisplayHDR 1000 to just "lifelike HDR It was clarified that.

This is the latest tweak to the broader G-Sync platform, which is a bit awkward, complicated, and perhaps a bit broken, at least in terms of how it is marketed.

Previously, the most advanced G-Sync Ultimate specification required VESA DisplayHDR 1000 certification with luminance performance "exceeding" 1000 nits. This can be verified using the Wayback Machine website, which keeps track of past versions of many web pages.

However, the current definition of G-Sync Ultimate on Nvidia's website mentions only the entirely unspecific requirement of "vibrant HDR". The question then arises as to what really separates the top-of-the-line G-Sync Ultimate monitors from the middling, mediocre G-Sync monitors.

Unfortunately, Nvidia's own marketing materials are thoroughly ambiguous. It stipulates that the Ultimate tier requires the "top NVIDIA G-SYNC processor," which refers to the G-Sync module or board that was once required for all G-Sync monitors. On the other hand, the lowest level, the G-Sync Compatible layer, is described as not using an Nvidia processor. However, for the middle "G-Sync" layer, there is no mention of a module.

We expect a clarification from Nvidia on this matter (update: see statement above), but so far our hunch is that only the top Ultimate layer has a hard requirement for a G-Sync module. As a result, the previous HDR 1000 requirement means that otherwise expensive, high-spec monitors that include the module but do not support HDR 1000 will not qualify for the G-Sync Ultimate tag, and such screens will have a hard time differentiating themselves from other mid-tier G-Sync panels and would have a hard time differentiating themselves from other mid-tier G-Sync panels.

One such monitor is the Alienware 38 Curved AW3821DW gaming monitor, which is rated at 600 nits and comes with the G-Sync Ultimate tag.

Whatever the case, the definition of G-Sync is certainly in flux and lacks clarity. Perhaps incorporating HDR into G-Sync has proven to be something of a misstep.

Nvidia may have decided to backtrack on the HDR requirement, allowing the creation of monitors with G-Sync Ultimate modules, but not HDR 1000.

Watch this space as we are asking Nvidia for clarification.