The SteamVR Performance Test measures a system’s rendering power using a 2-minute sequence from Valves Aperture Robot Repair VR demo. After collecting the data it determines whether a system is capable of running VR content at 90fps and whether VR content can tune the visual fidelity up to the recommended level. For machines that are not VR Ready the tool can help determine whether capabilities are bound by Graphics Card, CPU, or both.
In the SteamVR Performance Test, the Sapphire RX 570 Pulse is clearly VR-ready. It also performs very similarly to ASUS' Strix card.
Excellent review; and it would be nice to see you you could label the release year of the games you use for benchmarking, as point of reference as well.