ok, I will add my benchmarks of Sapphire Radeon PULSE RX 5700 XT 8G, 8GB GDDR6, I am unable to make SMBIOS iMac19,1 to work so I have to use MacPro6,1, here is openCl and Metal score:
here is my clover efi setup, if you find anything I can make better, don't hesitate to write me
Just find...