Chinese memory manufacturer ChangXin Memory Technologies (CXMT) is reportedly closing the manufacturing gap with Samsung on DDR5 DRAM.
A recent Chinese media report claims the company has pushed yields on its 17nm-class DDR5 process past 90%.
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That would put it just a couple of percentage points behind Samsung’s reported 92–93% on similar-generation chips.
Yield rate is the percentage of good, usable chips from each production run; higher yields mean lower costs and more reliable supply.
Progress and Adoption
Earlier reports suggested CXMT struggled with lower yields on DDR5, and some industry insiders even thought it had skipped the 17nm node entirely for 16nm.
The latest claims could indicate better results on an existing process or differences in node descriptions.
CXMT’s chips have already appeared in a few commercial products.
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Acer and Asus are using the memory in select notebook models, mostly sold in China and other emerging markets.
HP is reportedly using CXMT DRAM exclusively for units headed to the Chinese market, while Dell has apparently steered clear so far.
However, overall volumes and the number of models remain limited.
Most big PC brands are still cautious about moving significant volume away from established suppliers.
Samsung, SK hynix, and Micron still dominate the global DRAM market, controlling more than 90% of revenue according to recent Counterpoint data.
CXMT’s share is much smaller, even though its revenue has been growing quickly.
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Its process technology also lags the denser nodes used by the top three, which offer better bit density and power efficiency.
That said, achieving mature yields on a mainstream DDR5 node would make it easier for CXMT to supply the domestic market and handle selective export volumes.
This comes while the global memory market remains tight, largely due to heavy AI-related demand.
CXMT isn’t in a position to challenge the leaders at scale yet, or on the most advanced products like high-bandwidth memory.
But better manufacturing efficiency is still a meaningful step toward becoming a more consistent supplier.
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The real test will be whether these reported yields hold up once production ramps to higher volumes.
