Prolific leaker Ice Universe has stated that the Qualcomm Snapdragon 8 Gen 2 is way more energy efficient than its predecessors, including the recenty launched Snapdragon 8+ Gen 1. The tipster adds that Samsung's upcoming Galaxy S22 FE could use a MediaTek Dimensity 9000 SoC instead of the Snapdragon 8 Gen 1/Exynos 2200.
https://www.notebookcheck.net/Qualcomm-Snapdragon-8-Gen-2-shines-in-initial-energy-efficency-tests.621865.0.html