Exynos 2100’s power efficiency is a huge improvement over Exynos 990 When Samsung built hype around the Exynos 2100 processor, it wasn’t kidding, especially after all the flak it received for the poor performance of the Exynos 990. The latest flagship Exynos processor seems to have made massive improvements in performance as well as power efficiency when compared to the Exynos 990, at least going by the latest benchmark numbers. Exynos 2100 vs. Exynos 990: Massive jump in performance and power efficiency A YouTuber, who goes by the name Golden Reviewer, has published SPECint2006 numbers for all the flagship smartphone processors from 2020 and 2021. This benchmark offers performance and power efficiency scores for processors.