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Intel Core Ultra 200V promises Arm-beating battery life without compatibility issues
(arstechnica.com)
This is a most excellent place for technology news and articles.
I couldn't find any clarification in the article but in guessing these are still x86_64 and from the description it seems like they've stacked a lot of different components into a single CPU core. Normally both those things would make it a big powerhouse so I'm not sure how it's going to beat arm on baterry which competes by having a smaller simpler ISA that doesn't need as much resources or complexity to process.
You realize that arm chips are also SoC's, containing all of those same, or similar, bits and bobs, right?