A device with a model number purportedly associated with Samsung's Galaxy A51 has surfaced on the Geekbench database. However, its results depict it as powered by the Exynos 9611, and not the next-gen 8 nanometer (nm) model rumored for its 2020 line of phones. In addition, it apparently has only 4GB of RAM.
https://www.notebookcheck.net/The-Samsung-Galaxy-A51-may-have-made-a-first-appearance-on-Geekbench-5.440207.0.html