Who actually counted CXMT's 90% yield?
According to Chinese media reports, CXMT’s 17nm DDR5 yield has already exceeded 90%.
CXMT products are currently available in relatively large volumes in the spot market in South China, allowing brands to procure chips based on their specific pricing and specification…
Word has gone around that ChangXin Memory Technologies, or CXMT, has pushed the yield on its 17nm DDR5 past 90 percent. This is not a company disclosure. It is a Chinese press report being passed along.
Yield means how many usable chips come off a single wafer. Past that line, nine out of every ten come off saleable, and at that point a price cut still leaves a margin. In DRAM, yield is the cost structure itself.
Where the number stops when you trace it
Follow the figure back and it ends at one article, published August 10 by the Chinese outlet Kuai Keji. The piece cites no research house and no company statement, saying only that data shows it, and it was picked up from there by Sina and NetEase. No firm that separately tracks DRAM output, such as TrendForce or SemiAnalysis, has confirmed the same number. That is also why the original post opens with the words according to Chinese media reports.
The yield figure is unconfirmed, but the volume this company is adding does show up in separate counts. At this price level, room opens for a new supplier.
Spot price from TrendForce, retrieved 2026-08-11. Wafer share from SemiAnalysis, 2026-06-23
Two accounts of Dell
Dell bans CXMT chips outright, and HP allows them only in machines sold in mainland China.
Tom's Hardware reported that Dell and HP were both running qualification on CXMT DRAM.
So two opposite accounts of the same company landed within six months. Both can be true. If a qualification was started and then dropped, the two reports line up in sequence.
Leading PC makers weigh Chinese memory chips, with HP and Dell qualifying CXMT DRAM (Tom's Hardware, 2026-02-05)That piece has Dell holding CXMT inside its qualification pipeline in February rather than shutting it out.
What TrendForce confirmed a week ago goes as far as limited adoption at three brands, and Dell does not appear in that count. Neither a ban nor a halted qualification has come from the company itself.
Where the Kuai Keji number touches the price
The reason the original post gives for the limited volumes is neither price nor quality. It is the risk of provoking the world's three largest memory makers. Where a brand sources the chips for one laptop line hangs on its whole relationship with Samsung, SK hynix and Micron. So even a confirmed yield figure would not move prices straight away. Here is where it splits. If CXMT chips turn up in the spec sheet of a globally sold Dell or HP model, the reported ban falls apart and price competition has started. If they stay confined to mainland China and emerging-market models through year-end, the fear of a backlash is binding harder than the yield.
- A 90 percent yield is being cited as evidence that Chinese DRAM has entered the cost-competitive band.
- Taken at face value it means a price cut still leaves a margin, which is where the three big memory makers start losing pricing power.
- But the figure was first written down by a single Chinese outlet, and that article never says where it came from.
Sources
- Original Jukan (@jukan05), 2026-08-11
- First report of the yield figure Kuai Keji, 2026-08-10, in Chinese
- Report on Dell and HP qualification Tom's Hardware, 2026-02-05
- Limited-adoption report TrendForce, 2026-08-04
- Spot price TrendForce DRAM spot page, retrieved 2026-08-11
- Wafer start share SemiAnalysis, 2026-06-23
Retrieved 2026-08-11. The spot price is that day's session average, and the wafer start share is a SemiAnalysis estimate.
This author's record
- BullKorea's DRAM module exports in the first eleven days of August were 4% of July'…
- BullOn August 5, China's CXMT turned down Apple's price-cut request
- BullThe business SK hynix bought for $8.85 billion now carries a $35 billion price…