I’ll take Microsoft’s word as the final say when actual results seem to be in line with what they’re saying.
SU10 dropped AFTER the new Studio driver dropped. AMD users are already seeing great DX12 performance, so the code is obviously in the sim already. It just doesn’t run on nVidia GPUs, even with the Studio driver. It’s expecting the GRD it would seem.
Once this new GRD drops, we should theoretically be seeing performance more in line with what was available during the initial 1.27.9 beta. Anything short of that, and I’ll consider this update to be a failure.