Your card is very similar to mine. I was able to break 14300, but that's it. It'll power limit if I try to run the core at 2100mhz REGARDLESS of what I lock the voltage at. Some GPU chips just appear to be hungrier than others.
What I can tell you, though is a few interesting observations..
1. The 3080 Ti will power limit instantly with Ray Tracing on vs off. For example, the game I test with is Guardians of the Galaxy (3440x1440p). With Ray Tracing off, I can run all day at 2070-2100mhz, but the moment I turn on Ray Tracing, it drops down into the 1900s unless I lower the voltage lock to .925ish, sometimes even lower like .918.
2. After testing many different games with MAX OC vs 1950mhz, gains literally are 2-5FPS. That's it. Not worth all the extra heat and noise in my opinion.