The chip currently known as the Snapdragon 6150, which could be the 675's successor, has appeared on Geekbench incorporated into an unnamed reference device. It is an octa-core chip, as expected, and runs at 1.8GHz. The 6150 posted a single-core score of over 2500 and a multi-core score of over 5400.
https://www.notebookcheck.net/Snapdragon-6150-pops-up-on-Geekbench-shaping-up-to-be-a-decent-mid-ranger.374771.0.html