Details about three Intel Tiger Lake-H45 processors have seemingly been revealed in the specsheet for a DT Research LT375 Rugged Mobile Workstation. The highly configurable device can apparently be fitted with an Intel Core i5-11400H, i7-11800H, or i9-11900H, up to a 4 TB SSD, 4K screen, and up to an RTX 5000 graphics card.
https://www.notebookcheck.net/Intel-Core-i5-11400H-i7-11800H-and-i9-11900H-specs-leaked-via-datasheet-for-LT375-Rugged-Mobile-Workstation-from-DT-Research.526433.0.html