Android Central has learned from its sources that the upcoming OnePlus 10R will run a MediaTek Dimensity 9000 SoC. Other specs include GB RAM and a 120Hz AMOLED screen. It will be unveiled sometime in Q2, 2022, for US$500-600.
https://www.notebookcheck.net/OnePlus-10R-US-500-smartphone-with-a-Dimensity-9000-SoC-and-120Hz-AMOLED-screen-slated-for-a-Q2-2022-launch.594683.0.html
OnePlus isn't stupid, there's no way they will sell a phone that outperform their flagship for a lower price.
Besides, no one still knows how exactly Dimensity 9000 would be priced. Some leaks say it might be pricier than Dimensity 1200, almost as 2x of it.