AMD GPUs are not as good as Nvidia's. The other issue that AMD and any other competitor has to face is that much of the new AI software uses CUDA, which as far as I know is limited to Nvidia hardware only.

ATI hasn't existed as a brand since 2010. Every GPU since then has had AMD branding.

Typically, AMD GPUs have a slight edge over NVIDIA GPUs in the price/performance metric, but NVIDIA simply offers higher performance options overall.

But NVIDIA cards also absolutely demolish AMD in compute power needed for AI.