I've tested myself the Async Compute forced on many AMD Radeon's architectures. Navi, Polaris, Vega and Fiji. The platform is an Intel Core i9 9900k @5GHz with 32GB of RAM @4000MHz CL19 (
Radeon RX Vega 56 vs GeForce GTX 1060
Gaming on Radeon RX Vega 56 AMD Ryzen 5 3600. Red Dead Redemption 2 Test - YouTube
Can a Vega 56 handle Red Dead Redemption 2 in 1440p? | Best Settings | PC - YouTube