From VG Tech:
The versions tested were 2.7.2111.121 on Xbox Series X and 1.005.000 on PS5.
PS5 and Xbox Series X in the Ray Tracing Mode both use a dynamic resolution with the highest resolution found being 3840x2160 and the lowest resolution found being 2560x1440. Pixel counts were often similar for PS5 and Xbox Series X in the Ray Tracing Mode with one exception found being the opening cutscene where pixel counts came in at approximately 3200x1800 on Series X and 2560x1440 on PS5.
The Ray Tracing Mode adds Ray Traced Reflections. Xbox Series S doesn't have a Ray Tracing Mode.
Frames Pixel Counted: