So a quick search of this site lists the clock at 1770MHz.
https://www.msi.com/Graphics-Card/GeForce-RTX-3080-Ti-GAMING-X-TRIO-12G
Boost Clock / Memory Speed
- 1770 MHz / 19 Gbps
- 12GB GDDR6X
- DisplayPort x 3 (v1.4a)
HDMI™ x 1 (Supports 4K@120Hz as specified in HDMI™ 2.1)
When I look at the Nvidia defaults for a 3080 Ti I see 1670MHz.
So you appear to have a factory overlock of 100MHz.
If you have the ability to control your clock, I would try dropping it to say 1600Mhz, so another 70Mhz below reference. See if that is stable, then perhaps increment by 50Mhz until it becomes unstable again.
This is nothing more than educated guesswork, but there is no harm in trying it either.