Difference is, AMD wasn't a competitor for ATi. One mostly built CPU's, while another- GPUs. These two, on the other hand, are competing in several major product categories. Overall, not a good look

I doubt we would be seeing Dell selling NVidia ARM CPUs anytime soon.

However I do imagine Intel GPUs, that were never great to start with, might be doomed, long term.

Also another possibility would be, there goes One API, which I doubt many people would care about, given how many rebrands SYSCL already went through.

>One mostly built CPU's, while another- GPUs.

I mean that also applies to Intel and Nvidia. Intel does make GPUs but their market impact is basically zero.