The 3DMark results still seem suspiciously low, especially those related to ray tracing performance. This could be caused by unstable drivers or the benchmark tests are somehow faked. On the plus side, the new Ashes of the Singularity results are looking better, with 40% gains over the stock RTX 2080 Ti.
https://www.notebookcheck.net/First-Nvidia-RTX-3080-3DMark-test-results-plus-additional-Ashes-of-the-Singularity-and-4K-game-comparisons-leak-out.492704.0.html