Improvements for the upcoming Kirin 820 mid-range SoC include an integrated 5G modem, upgraded ISP and NPU units, plus a more powerful Mali-G77 GPU. Huawei decided to keep the same 7 nm manufacturing process and the ARM Cortex-A76 performance cores will not be upgraded to any newer versions.
https://www.notebookcheck.net/Huawei-s-Kirin-820-mid-range-5G-SoC-gets-leaked-specs.458441.0.html