https://wccftech.com/exynos-2100-5nm-process-3-00ghz-highest-running-core/

We first got to see how the Galaxy S21 Plus would perform thanks to an alleged benchmark leak, where the specification details mentioned the flagship was running an Exynos 2100, not an Exynos 1000. While we’ll wait for Samsung to clarify the official name of the chipset, a tipster has shared relevant info surrounding the Exynos 2100’s manufacturing process, claiming it will be made on the 5nm architecture, along with other interesting revelations such as the CPU cluster and the frequency these will run at.

The Exynos 2100 will apparently sport a 1 + 3 + 4 CPU cluster, like the Snapdragon 875, where one will be a large core operating at the highest possible frequency. It’s possible the Exynos 2100’s large core is the Cortex-X1, and the Snapdragon 875 is also rumored to use the same. According to what tipster Digital Chat Station has mentioned in his tweet, the large core will operate at 2.91GHz, though we feel that if Samsung were to optimize cooling, the Galaxy S21 lineup could break the 3.00GHz frequency mark effortlessly.