Shortly after finding out that AMD is working on 7 nm Vega 20 GPUs, the alleged benchmark results for this upcoming product were spotted in the 3DMark 11 database. According to the listing, the Vega 20 with 32 GB of HBM2 memory clocked at 1.25 GHz is about 70 percent faster per clock than the RX Vega 64 Liquid.
https://www.notebookcheck.net/AMD-7-nm-Vega-20-benchmark-results-surface-online.301610.0.html