The PS5’s HDMI 2.1 port is limited to 32 Gbps, while that of the Xbox Series X goes up to 40 Gbps. Vincent Teoh of the HDTVTest YouTube channel made the discovery and it affects the colors displayed.
In the video, Vincent shows the properties of the HDMI 2.1 port on the PS5 with the FreeSync Information Tool. A tab will appear in the corner of the screen showing details about the current display. The video is an opportunity to see the game Devil May Cry 5 when it is running in 4K 120Hz.
Since this HDMI 2.1 port is limited to 32 Gbps, the PS5 is limited to the YUV422 color space at 4K 120 Hz. The YUV444 format is therefore not supported. This corresponds to a raw format with no compression or no subsampling with no loss of quality. In addition, unlike the Xbox Series X, the PS5 has neither VRR nor ALLM.
A simple question: why should the HDMI 2.1 port on the PS5 be limited to 32Gbps? Given the performance of the console, is this a necessity? Or can Sony climb to 40 Gbit / s with a future software update? There is currently no answer. The PS5 went on sale in France yesterday.