New laptop drivers for latest AMD laptop chips are in the latest AMD GPU driver update 19.2.3 (released yesterday).. Good performance boost.

Quote
Radeon Software Adrenalin 2019 Edition 19.2.3 Highlights

Support For

AMD Ryzen™ Mobile Processors with Radeon™ Vega Graphics

Up to 10% average performance gains .. vs. 17.40 launch drivers..
Up to 17% average performance gains in eSports™ titles ...


Indicates the issue with testing new AMD (or Nvidia) CPUs and GPUs -- usually, the first drivers are not optimized. So, one cannot fairly compare a new design GPU to an established GPU until the drivers are fully optimized (usually takes months, not days).

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Sapphire Pulse RX7900XTX, 3 monitors = 23P (1080p) + SAMSUNG 32" Odyssey Neo G7 1000R curve (4K/2160p) + 23P (1080p), AMD R9-7950X (ARCTIC Liquid Freezer II 420), 64GB RAM@6.0GHz, Gigabyte X670E AORUS MASTER MB, (4x M.2 SSD + 2xSSD + 2xHD) = ~52TB storage, EVGA 1600W PSU, Phanteks Enthoo Pro Full Tower, ASUS RT-AX89X 6000Mbps WiFi router, VKB Gladiator WW2 Stick, Pedals, G.Skill RGB KB, AORUS Thunder M7 Mouse, W11 Pro