Tipster @patrickschur_ reports that an AIB Radeon RX 6800 XT part boosts to 2.5 GHz and beyond when running 3DMark 11. The sample was listed as an engineering sample, indicating that retail clocks could go even higher.
https://www.notebookcheck.net/Big-Navi-ASUS-ROG-STRIX-Radeon-RX-6800XT-allegedly-boosts-to-a-remarkable-2-5-GHz-in-3DMark-11.499281.0.html
Looking forward to seeing independent reviews of the 6000 series. My 1080TI is by no means not delivering the goods (in fact it is doing everything I need) but I love a competitive gpu sector. Great for us consumers.