AMD's mobile Radeon mRDNA 2 graphics is reportedly a bit faster than the upcoming ARM Mali GPU in peak performance, and the performance is higher than the latest Mali GPU even if subjected to a 30% performance drop under throttling. Samsung and AMD will likely unveil the new SoC in July. We are also hearing that Google has also signed the contract with AMD for mRDNA 2.
https://www.notebookcheck.net/Exynos-with-AMD-mRDNA-2-to-be-unveiled-in-July-peak-performance-better-than-next-gen-Mali-GPU-while-beating-latest-Mali-even-with-30-throttling-Google-signing-up-for-mRDNA-2-as-well.546822.0.html