[News] CXMT Confirms LPDDR5X Mass Production Began in May, High-speed Variant Under Customer Trials

As China races to catch up with South Korea’s memory leaders in cutting-edge products such as DDR5 and HBM3e, domestic DRAM champion CXMT unveiled the latest updates on its LPDDR5X lineup on October 28. The company reported that its 8533Mbps and 9600Mbps products entered mass production in May, while 10667Mbps variants are now being dispatched for customer trials.

At the IEEE 2025 ASICON conference in October, CXMT highlighted the latest progress on its LPDDR5X lineup, which now spans dies, chips, and modules. Die options include 12Gb and 16Gb capacities, while chip-level solutions cover 12GB, 16GB, and 24GB. LPCAMM modules are offered in 16GB and 32GB variants, providing a broad and flexible portfolio for different applications.

As CXMT explains, its LPDDR5X lineup supports speeds of 8533Mbps, 9600Mbps, and 10667Mbps, with full compatibility with LPDDR5.

In late 2023, the company was rumored to complete the development of LPDDR5. According to CXMT, its LPDDR5X achieves global mainstream performance with 12Gb/16Gb die capacity and top-tier 10667Mbps speeds – a 66% improvement over LPDDR5 while maintaining full backward compatibility and reducing power consumption by 30%.

By comparison, Samsung unveiled the industry’s first 14nm 16Gb LPDDR5X DRAM in late 2021 and began mass production of its ultra-thin 12nm LPDDR5X DRAM packages, available in 12Gb and 16Gb, in August 2024, according to its press release.

Reuters reported last week that CXMT is gearing up for an IPO in Shanghai as early as Q1 next year, seeking a valuation of up to RMB 300 billion (US$42 billion).

The report suggested the company’s parent began IPO preparations in July, entering China’s so-called “counselling process,” and appointed state-owned investment banks China International Capital Corporation (CICC) and CSC Financial to lead the deal.

Sources cited by Reuters said the IPO is likely to attract strong interest from domestic investors, eager to support China’s semiconductor self-sufficiency drive.

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(Photo credit: CXMT)