A lot of us are using the automatic setting for NVidia RTX carts.
I found that there is a article how you should set your cart to profit in using Iray. Please share it if you want. Although NVidia starts with the RTX3080 it is useful for your settings of your Videocart.
Not only settings for DAZ Studio, but also programs like Blender, Photoshop and so on to get the best profit out of your cart
The second link has the settings for theDAZ STUDIO PRO (V.4-)
Iray Features (nvidia.com)
Turning on GPU Acceleration in Creator apps | NVIDIA (custhelp.com)