GTA 6’s HDR and SDR trailers were compared to see whether the HDR version contains any extra visual detail.
A technical comparison of the HDR and SDR versions found that HDR mainly changes how the game displays brightness and contrast.
HDR isn’t adding extra detail to the image. The same visual information is displayed across a wider brightness range. The HDR version can make GTA 6’s lighting look more realistic and cinematic, but it’s not a higher-detail version of the trailer.