I have just got a Sapphyre R9 380x and I am getting very low and corrupted textures in Witcher 3.
This is hppening on the latest driver(16.7.2 Hotfix) and on the oldes drivers i could download from Sapphyre (16.4.2).
Here are screenshots
I am running windows 10, i5 2500k.
Hello! Try to disable your integrated intel graphics from bios.