Google US semiconductor sanctions on China. Basically US (and allies pressed by US) aren't allowed to export their most cutting edge semiconductor tools and materials to China, so China can only make chips using older-gen tools on older process nodes than western-aligned competitors.
The other part of the sabotage is that western companies then have restrictions on what chips they're allowed to buy from China. IDK if RAM chips are also on that list.
alt Hacker News
Google US semiconductor sanctions on China. Basically US (and allies pressed by US) aren't allowed to export their most cutting edge semiconductor tools and materials to China, so China can only make chips using older-gen tools on older process nodes than western-aligned competitors.
The other part of the sabotage is that western companies then have restrictions on what chips they're allowed to buy from China. IDK if RAM chips are also on that list.