Chinese chipmaker ChangXin Memory Technologies (CXMT) has demonstrated a new overclocking milestone, with Colorful's iGame Shadow II DDR5 memory kits reaching 8800 MT/s on AMD's X870E Vulcan W OC motherboard. The result was achieved on both 32GB (2x16GB) and 48GB (2x24GB) configurations, according to Tom's Hardware, which noted the 2x16GB result is especially notable since high-speed kits typically rely on larger 24GB modules for better performance.
Wccftech reported that the 2x16GB kit's jump to 8800 MT/s represents a 200 MT/s increase over a previous 8600 MT/s result achieved by Colorful just weeks earlier on the same motherboard. Both outlets note that 8800 MT/s had previously only been reached on Intel's Z890 platform, using an Asgard 2x24GB CXMT-based kit, making this the first time CXMT memory has hit that speed on AMD's AM5 platform. Wccftech reported that Colorful said both configurations tested stable at these speeds.
Tom's Hardware provided context on CXMT's technical position, noting the company lacks access to advanced EUV lithography due to U.S. export restrictions on China, and instead uses older DUV-based 16nm manufacturing—technology roughly comparable to the Big Three's 1z nm nodes from several years ago. Despite this disadvantage, CXMT's overclocking results are keeping pace with top-tier ICs like SK hynix's A-die and M-die, which benefit from more advanced 1a-nm EUV production.
According to Tom's Hardware, CXMT was founded about a decade ago and has grown into China's largest domestic memory manufacturer and the fourth-largest memory maker globally. The company only introduced its first DDR5 ICs in November 2025, but its chips are already being used by major Chinese memory brands including Asgard, Colorful, Gloway, and KingBank, and to some extent by Corsair. Tom's Hardware also reported that companies such as HP, Asus, and Acer have begun selling consumer laptops and desktops containing CXMT memory, and that Apple has reportedly expressed interest in buying memory chips from CXMT.
Tom's Hardware noted that CXMT recently went public, with its stock price rising 466% and the IPO raising over $8.6 billion. The company is reportedly building factories across China and aims to capture 30% of the memory market from the Big Three—Samsung, SK hynix, and Micron—by 2030.
Wccftech suggested that given the pace of recent improvements, CXMT-based DDR5 modules could soon reach 9000 MT/s. The outlet noted that ASUS and MSI have already surpassed 8000 MT/s with CXMT memory, though further optimization will be needed to push speeds beyond 9000 MT/s.