DF added there photo mode observations.
https://www.eurogamer.net/articles/digitalfoundry-2021-control-ultimate-edition-photo-mode-rt-benchmark
Running unlocked does show varying degrees of overhead and based on over 20 matched scenarios, Series X does have a rendering advantage, which on average delivers a 16 per cent lead over PlayStation 5. We go through those scenarios in the embedded video on this page and the variation from test to test is significant - so we should emphasise that the 16 per cent figure is indeed a mean average. Some tests show an even wider margin, others see the situation close up significantly.
The rest of the analysis is only in video form, I haven't watched it.
That the Series X has a faster GPU is not surprising. (16% faster in raw flops) However with everything frozen, shouldn't the difference always be the same percentage wise. Perhaps the video reveals why some scenes work better on either console.







