The first Geekbench 5 results of the Apple Mac Mini Developer Transition Kit (DTK) powered by the A12Z Bionic running macOS 11 Big Sur Developer Beta 1 have surfaced despite Apple's developer NDA being in force. The benchmark is running under a Rosetta 2 emulation and the performance deficit, though significant compared to the Core i5 MacBook Air 2020 and the iPad Pro, is understandable and in many ways, encouraging.
https://www.notebookcheck.net/First-A12Z-Bionic-DTK-Geekbench-5-benchmarks-show-Apple-s-transition-holds-immense-promise-only-a-28-in-drop-seen-in-single-core-score-compared-to-the-MacBook-Air-2020.477595.0.html