Russia has been cut off from CPUs
Russia has been cut off from CPUs
www.tomshardware.com Russia's CPU Substitution Plan Hits a Snag
Russian PC makers cannot get Russian CPUs from TSMC, other foundries.
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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First, Russia is able to produce their own domestic chips, second Russia can import chips from CSMC which is in China and doesn't care about US sanctions one bit. What I'm reading here is that Chinese foundries just got a big new market opened up to them without any competition.