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CXMT claims DRAM breakthrough with new 24GB LPDDR5X chips

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CXMT claims DRAM breakthrough with new 24GB LPDDR5X chips

Chinese memory-maker CXMT, whose products Apple has reportedly evaluated for use in the iPhone, announced on Sunday that it has started mass production of DRAM chips built on a fifth-generation manufacturing process. CXMT says the process's key breakthrough is a high-k dielectric metal gate technique, a way of insulating silicon to improve efficiency, adapted to DRAM manufacturing, and that it essentially doubles memory density, meaning twice as many memory dies can be cut from a single wafer. The company claims this puts its process on par with rival memory-makers, though it names no specific competitor or process node as the benchmark. As proof, CXMT unveiled a pair of LPDDR5X memory modules aimed at smartphones and other high-end consumer electronics; both carry 24GB of memory. The announcement lands amid a global memory shortage driven by AI-related demand, which recently pushed Apple to raise iPhone prices by $100 and led the GSM Association to warn that rising smartphone prices threaten to slow digital inclusion. If CXMT's claims about density and mass production hold up, and the new modules are not too pricey, it would ease that supply crunch for Chinese electronics manufacturers specifically. Democratic governments, however, remain largely uncomfortable with letting their smartphone makers use Chinese components, a friction that would limit how far the breakthrough travels regardless of its technical merit.

Key facts

  • CXMT started mass production Sunday of DRAM chips using a fifth-generation, high-k dielectric metal gate process that it says doubles memory density per wafer.
  • The company showed off two 24GB LPDDR5X modules for smartphones and other high-end consumer electronics as evidence of the new process.
  • CXMT claims the process puts it on par with rival memory-makers but does not name a specific rival or process node for comparison.
  • Apple has reportedly evaluated CXMT's memory for iPhone use, and the same AI-driven memory shortage recently pushed Apple to raise iPhone prices by $100.
  • The GSM Association has warned that rising smartphone prices threaten to slow digital inclusion, while democratic governments remain wary of Chinese components in phones.

Why it matters

A global memory shortage, driven by demand for AI hardware, has already raised smartphone prices industrywide and prompted the GSM Association to warn about slower digital inclusion. If CXMT's density claim and mass-production timeline are real, it gives Chinese electronics manufacturers a domestic supply of competitive DRAM at a moment when everyone is fighting over the same scarce chips.

Who it affects

Chinese electronics manufacturers who need affordable memory chips, CXMT itself, and Apple, which has reportedly evaluated CXMT's memory for iPhone use. More broadly, it affects smartphone buyers already facing higher prices from the memory shortage, and industry bodies like the GSM Association tracking the effect on digital inclusion.

How to use it

The two new modules are LPDDR5X memory aimed at smartphones and other high-end consumer electronics, each carrying 24GB of capacity. Neither price nor availability has been disclosed; the only comment on cost is a conditional aside that the products should not be 'too pricey' for the benefit to materialize.

How solid is it

Every technical claim here, the density doubling, the high-k dielectric metal gate process, parity with rivals, comes from CXMT's own announcement as paraphrased by the report; no official CXMT statement is quoted directly. No process node or fab location is given, and no specific rival memory-maker is named as the 'on par' benchmark. Treat the breakthrough as a company claim, not an independently confirmed result.

Risks and caveats

Without a disclosed price, it is unclear whether the new modules actually solve the affordability problem the piece frames them against, if they are too costly, the supply-chain benefit doesn't apply. Separately, democratic governments are largely unwilling to let their smartphone makers use Chinese memory components, which caps how far this technology can spread even if CXMT's technical claims prove accurate.