Compete with AMD as well. They don't license the designs directly, but the reason they've dominated the last couple generations of consoles is they're willing to do custom work where Intel traditionally was more "take it or leave it"

They aren't worthless, they are just much more suited for low power embedded systems rather than a general purpose PC.

Atom cores might be the predecessor of efficiency cores, I don't think Intel calls them that anymore, but I would need to check.

I think the efficiency cores in my 32-core i9 are related to the old atom cores but I'm not sure. I think if you want them in your data center class chips will depend very much on what you predict the loading will be like.

it is completely unknown what kind of SoC it plans to develop and which markets it is going to pursue.

Arguably the biggest question is which Atom-class core Intel licensed to Rosaic.

We'll have to wait and see it seems.