Cant get accelerated GPU in Fusion360 Mac

[syproduction]

Hello.

I am on Mac Pro 3,1 with macOS Catalina 10.15.7. Gpu is Sapphire Radeon HD 7950. GPU is flashed for Mac version so I have bootlogo and it is detected properly in system (AMD Radeon HD 7950 3072 MB). GPU is listed as Metal-capable on Apple website.

When I open Fusion 360, it gives message:

• The software renderer is being used; it could be due to that the graphics card is not powerful enough or its driver is not installed

And now in Graphics diagnostic there are:

• Graphics Card: Apple Software Renderer, Rating: Unknown, Workarounds: 0

So how I can get around this? Does anybody have experience with this card on Mac?