>>106189272
>except power limiting also reduces the voltage
NTA, but this isn't necessarily true.
Voltage will be reduced only if your power limit is set too strictly, and you will lose performance compared to an OC + UV.
Increasing the GPU core offset slider + setting a power limit would achieve similar results to an OC + UV.
Setting a lower voltage limit would probably make the card run more power efficiently.
Test it yourself with a single benchmark.

>>106188689
Get the beta version of MSI Afterburner to unlock memory OCing past 2000MHz for RTX 50 cards.
https://forums.guru3d.com/threads/msi-afterburner-4-6-6-beta-6-with-unofficial-rdna4-support.456792/

If you want a quick and easy guide without fiddling with the V/F curve, set the GPU "Core (MHz) Curve" offset slider to anywhere between +200~250MHz, you can go higher with RTX 50 but this is a good starting pt.
Then set a power limit to 75~85% (270~306W from stock 360W).

If you want to use the curve editor, refer to the guide below.
But don't follow their frequency offsets or voltage limit, they are using a 3070 as a reference.
RTX 50 should handle the 200~250MHz GPU core OC I mentioned earlier, and their performance/efficiency voltage sweet spot is between 925~975mV.
https://github.com/LunarPSD/NvidiaOverclocking/blob/main/Nvidia%20Overclocking.md
https://www.youtube.com/watch?v=LPpW9yXHvOU

Don't follow most TechTubers' undervolt guides; they are usually downclocking the V/F points to the left of their voltage limits.