Chinese CPU and GPU maker Loongson is beginning its transition to 7nm in 2024, which will apparently provide a 20% to 30% uplift in performance (via Digitimes). Due to U.S. sanctions, the company's upcoming 7nm chips can only be fabbed in China — and although that might cost Loongson some performance and efficiency, it's still a win for China's native semiconductor industry.
Loongson is one of China's premier chip makers, offering both CPUs and GPUs. It currently makes 12nm CPUs (likely fabbed by Chinese foundry SMIC), and the upgrade to 7nm should boost the performance of the 3A7000 CPU by 20% to 30%. Development for 7nm chips will begin next year, and, since it takes a while to fully finish a chip, the final products probably won't arrive until 2025 at the earliest.
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