Buggy drivers. I was driven nuts over January with an RX-580 in my sons computer. Replaced it with a GTX-1060 which just plain works. Zero issues. The RX-580 was a nightmare.

Seems AMD doesn't have the resources to produce quality software, much less R&D into new fields such as Nvidia.

Nvidia is not just targeting their GPUs for automotive, but addressing the issues of reliability and safety in that environment. That's a lot of effort. If AMD can't write a driver that does not crash, there is no way in hell they will compete in AI where safety is a concern.

Power efficiency. In terms of price and performance, they can compete with Nvidia at the cost of power efficient chips. This might also mean that the the architecture might have less growth potential than Nvidia's. https://www.anandtech.com/show/11717/the-amd-radeon-rx-vega-...