DDR5 sweet spot on Z790 ?

[digitaldreams]

Currently running 'sweet spot' DDR4 3600 well on a Z690 motherboard that claims to 'support' 3200. Memory that was recommended by OC sales at the time of purchase.... I'm now considering moving to a new Z790 so I can use my old board to upgrade another pc. These boards claim 'support' for DDR5 5600 yet I'm of course thinking the 'sweet spot' might be something higher like 6000 ??

 

[digitaldreams]

There's some numbers here:

Ryzen 9 7950X3D Memory Scaling Benchmark, Does DDR5 Performance Matter?

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and here, though unfortunately only with a 3090.

Big jump from 4800 to 5200 then only small increases upto 7200 so 5600 might be a good choice....