|Xbox Series S||Xbox Series X||PS5|
|Resolution mode resolution||Dynamic 2560 x 1440, drops to 1200 on vertical axis, 1280 on horizontal axis on particularly demanding scenes||Dynamic 3840 x 2160, drops to 1800 on vertical axis, 1920 on horizontal axis during very demanding scenes||Dynamic 3840 x 2160, drops to 1800 on vertical axis, 1920 on horizontal axis during very demanding scenes.|
|Resolution mode graphics settings||Lower than Series X/PS5||Matched with PS5||Matched with Series X|
|Resolution mode framerate||Mostly locked 60 fps, a few small drops to around 57 fps on the taxing helicopter sequence||Locked 60 fps with raytracing off, locked 60 fps with ray tracing on||Locked 60 fps with raytracing off, mostly locked 60 fps with raytracing on, but with drops as low as 41 fps on some demanding scenes|
|Framerate mode resolution||Mode not available||1200p with some drops to 1080p||1200p with some drops to 1080p|
|Framerate mode framerate||Mode not available||Mostly 120 fps, drops as low as 95 fps on taxing sequences||Mostly 120 fps, drops as low as 99 fps on taxing sequences|
|Raytracing||Not available||Optional on resolution mode||Optional on resolution mode|
So, to summarize. XSX has a small advantage with ray tracing on, PS5 has a small advantage in 120 fps mode, though Xbox variable refresh rate support softens the impact of the slightly lower 120 fps mode framerate.
Edit: The PS5 performance drops in certain scenes with raytracing on seems to be due to a bug, restarting from checkpoint sometimes fixes the bug, but not always.
After re-testing, let's summarise: there is no RT on Series S but there was a shadow glitch. There is a performance dip on PS5 in RT mode, but this appears to be a bug as a checkpoint restart can improve matters (but not always!). Here's a vid showing that: pic.twitter.com/ilyOqhNAtC— Digital Foundry (@digitalfoundry) November 24, 2020