Here is what you and most here aren't grasping. Apple has been developing AI in-house for the past decade. Rarely has Apple come out first on any technology unless it was completely developed in-house, and when it comes to industry wide products that change the course of the next decade they always hang back for 2-4 years while evolving their plans and cross-platform solutions.
When Apple comes out with their plans it will be more than what people are dismissing and in areas Nvidia has no foothold nor will they ever get a foothold in.
Nvidia had their Moonshot. That's Moon is starting to wane and they know it. Their valuation is not sustainable over the long haul and they know it.
They are nothing in the IoT world where hundreds of vendors are tuning their upcoming product lines with AI SoC across all network hops, across metropolitan to rural zones.
They don't know the consumer desktop, they don't have a shot to touch the iPhone/iPad/MacBook Air/Pro/Mini worlds, never mind the Mac Pro as they have no hardware in those tiers.
They are steadily falling behind in the Supercomputer space, they aren't a hub of Cloud Services like AWS, Azure, Oracle, IBM Watson, etc.
Apple will continue to diversify, extend and grow new vertical markets in the Smart Home, IoT markets, Streaming Media Services, etc. adding more to Apple One.
The Apple CarPlay research has barely scratched the surface.
CUDA is no longer the be all end all for Machine Learning, Diffusion, etc., and it's proprietary approach is why it will lose to AMD and others who are more and more investing in AMD gear each week.
Go try out TensorWave or LaminiAI.
Apple isn't betting their AI platform on the Client. Their heavy lifting will include the Cloud.