tl;dr: Intel and AMD are not selling their processors to Russia, and processors from Russian companies cannot be manufactured as Taiwan is banning TSMC from doing so, while Russia can only produce chips up to a 90 nm process.
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Never claimed that the Chinese are that far behind but they just don’t have the same production capabilities as Taiwan or Korea. That might change in a few years tho.
And I guess losing access to modern production facilities in Taiwan ain’t no biggie for the Russians as they plan to produce their own 28nm chips by 2030 (28nm was introduced in 2011 btw) so maybe I’ll game on a Russian CPU by 2055 lol.