Test report DSG-4311 · Rev D · tested October 10, 2026

Memory & StorageDevice under test

CXMT starts mass production of fifth-gen DRAM, targeting 50% more dies per wafer

CXMT has started mass production of its G5 DRAM platform and two 24Gb LPDDR5X products, boosting dies per wafer by 50% amid a shortage that has tripled DDR5 kit prices.

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Spec summary

  1. CXMT began mass production of its fifth-generation DRAM platform, announced at the 2026 World Manufacturing Convention in Hefei, China.
  2. Two new LPDDR5X products offer 24Gb capacity, a 50% increase over the previous generation, targeting mid- to high-end smartphones.
  3. The G5 platform increases dies per wafer by at least 50% versus CXMT's fourth-generation platform.
  4. TrendForce reported global DRAM revenue rose 59.5% sequentially in Q2 2026 as supply lagged demand.
  5. A 32GB DDR5 kit that cost $150 a year ago now sells for $550; Samsung, SK Hynix and Micron output is sold out through 2027.

ChangXin Memory Technologies (CXMT) has begun mass production of its fifth-generation DRAM platform, a move that increases die output per wafer by at least 50% over its previous generation and adds a fourth major manufacturer to a market straining under severe supply constraints.

CXMT announced the production ramp at the 2026 World Manufacturing Convention in Hefei, Anhui Province, China. At the event, the company demonstrated two LPDDR5X memory products built on the new G5 platform and confirmed both have entered mass production.

What are the new products?

Each of the two LPDDR5X devices offers 24Gb of capacity, a 50% increase over comparable products from the previous generation. The parts use different package configurations and target mid- to high-end smartphones and other portable consumer electronics.

The G5 platform itself raises memory density substantially. According to CXMT, a wafer now yields at least 50% more dies than on the company's fourth-generation platform. CXMT also expects improvements in power efficiency and manufacturing costs from the new process.

Alongside the silicon, CXMT developed a digital-twin system during the G5 program. It uses process models to build a virtual development and manufacturing environment covering product design, development, production and maintenance, with the aim of shortening R&D cycles.

Why does the timing matter?

The ramp lands in the middle of a supply crunch with no near-term relief. Demand for DRAM keeps climbing as AI infrastructure drives memory consumption higher, and supply continues to lag demand growth.

TrendForce reported that global DRAM industry revenue rose 59.5% sequentially in the second quarter of 2026 — a figure that reflects pricing power as much as volume, given how far output trails orders.

Retail prices tell the same story. A 32GB kit of DDR5 memory that sold for $150 a year ago now commands $550.

Can a fourth player move the market?

The DRAM market is effectively controlled by three vendors: Samsung Electronics, SK Hynix and Micron. All three run at maximum capacity, and their future manufacturing output is already bought up through 2027.

That leaves buyers with no incremental supply from the incumbent trio for roughly two years. CXMT's output, even if the company sells exclusively within China, would absorb part of the demand now competing for Samsung, SK Hynix and Micron allocation.

The specifics of the G5 platform indicate where CXMT is aiming first: LPDDR5X for smartphones and portable devices rather than server-class DDR5. Still, the density gains — 24Gb dies at a 50% higher wafer-level yield — represent the kind of capacity expansion the industry has been unable to source from established suppliers.

For memory buyers, the entry of a fourth volume manufacturer marks the first structural change to DRAM supply since the current shortage began, though CXMT has not disclosed total wafer capacity or shipment volumes for the new platform.

via networkworld.com (Original)

Filed under

  • cxmt
  • dram
  • lpddr5x
  • memory-shortage
  • changxin-memory
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News editor covering marketplaces and e-commerce at Die Signal.

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