Basically, on AM5 4x32GB sticks nominally run at only 3,600 (i.e. no better than DDR4, and at probably slightly higher latency). On Level1Techs forums, there’re some folks that got it working as high as 4,800, which seems to be the barrier, but even that is far from guaranteed.

On Intel the situation isn’t really any better. Technically on paper, the stock speed is 4,000 (i.e. +400MT/s compared to AMD), but I’m yet to hear about anyone running 5,200 fully stable in this config.

Also, primary timings like CL36 don’t really matter in DDR5. There’s a whole ActuallyHardwareOverclocking YouTube video on it.