The handset that is believed to be the compact (and less potent) version of the Samsung Galaxy S9 flagship has just been spotted on Geekbench, where it is listed under the model number SM-G8750. This handset is rumored to be currently tested in China and features 4 GB RAM and a mid-range Qualcomm Snapdragon 660 processor.
https://www.notebookcheck.net/Alleged-Samsung-Galaxy-S9-Mini-with-Qualcomm-Snapdragon-660-onboard-hits-Geekbench.294810.0.html