Try benchmarking with a bunch of combinations of core clock (2700, 2710 (...), 2750...) and memory clock (2000, 2050, 2100, 2150). Sometimes you get clock stretching (worse performance, even if clocks are higher) at high speeds, or ECC errors (even a few can make a difference). You might see a dropoff in performance or a stagnation in benchmark scores at some point. The point before the dropouts is the max clocks you can sustain at proper speed, and the point when it stagnates is the range you've got.
Also FCLK overclocking can get a significant amount of gain on places like Superposition. IF you can dial in 1900 or 2000 you can gain a solid 200 points on it.
To be fair, your scores look alright for what you've got dialed, but RDNA (1/2/3) overclocking is a pain in that regard. There's no artifacts, no obvious tell tale signs in some cases (though driver crashes exist still, obviously), just... worse performance.
I get worse performance if I have the core clock at 2750 than at 2730MHz. All luck of the draw. Of course yours is better, as I cannot even dream of 2800 running anything.
