The 3DMark scores for the upcoming Ryzen 4000 desktop APUs show solid performance gains over the older models as far as CPU cores go, but the iGPU gains are quite minimal since the chips essentially use the same Vega cores from last year.
https://www.notebookcheck.net/Benchmarks-for-the-upcoming-Ryzen-4000-desktop-APUs-including-the-Ryzen-3-4200G-Ryzen-5-PRO-4400G-and-Ryzen-7-PRO-4700G-spotted-in-the-3DMark-database.466967.0.html