Chinese memory manufacturer ChangXin Memory Technologies (CXMT) has reached a reported 9,000 MT/s with a DDR5 kit, marking a significant improvement over the company’s earlier frequency ceiling. Demonstrations from Colorful and ASUS also show CXMT-based modules achieving tighter timings, including CL30 and CL28 configurations at 6,000 MT/s and beyond.
Key takeaways
- Colorful demonstrated a 24 GB x2 CXMT-based DDR5 kit at 9,000 MT/s.
- The 9,000 MT/s test used an AMD Ryzen 7 9800X3D and CL46-58-58-126-216 timings.
- The same kit operated at DDR5-6000 with CL30 timings and an EXPO profile.
- ASUS has demonstrated CXMT modules reaching CL28 and CL30 at 6,000 MT/s or higher.
These results suggest that Chinese DRAM is improving not only in raw frequency, but also in the latency characteristics important to gaming and productivity workloads.
Colorful reaches 9,000 MT/s with CXMT memory
Colorful used its dual-DIMM X870E Vulcan W OC motherboard for the frequency demonstration. The board was paired with an AMD Ryzen 7 9800X3D and a 48 GB iGame Shadow II kit using CXMT DRAM. The modules carried an EXPO rating of DDR5-6000 but were overclocked to 9,000 MT/s.
At that speed, the kit ran with CL46-58-58-126-216 timings and completed a RunMemtestPro stability test with an average coverage figure of 114.6%. The result is a substantial step beyond earlier CXMT-based modules, which were reported to struggle beyond approximately 6,400 MT/s.
DDR5-6000 operation delivers tighter timings
The same memory kit was also tested at DDR5-6000 and 1.4 volts with its default EXPO timings of CL30-38-38-76-144. On an AMD Ryzen 5 9600X system, AIDA64 recorded 58.7 GB/s read, 81.1 GB/s write, and 54.7 GB/s copy performance, with measured latency of 76.6 nanoseconds.
This matters because extreme memory frequency and practical latency are separate performance targets. A high-speed overclock can improve bandwidth, while tighter timings can benefit frame-time consistency and workloads that respond to faster memory access.
ASUS demonstrations target CL28 and CL30
Colorful is not the only motherboard vendor working to improve CXMT memory support. ASUS has shown CXMT-based modules from multiple Chinese memory manufacturers operating at CL28 and CL30 at DDR5-6000 and above. Demonstrated capacities include dual 16 GB, dual 24 GB, and mixed-capacity configurations.
Motherboard BIOS updates, memory-controller tuning, signal calibration, and improved refresh-logic settings appear to be helping overcome earlier compatibility and frequency limitations. For PC builders, broader BIOS support could make these modules easier to deploy on current AMD and Intel platforms.
What the progress means for buyers
For years, DDR5-6000 CL30 and CL28 kits were most consistently associated with premium Hynix-based memory. CXMT’s progress could give Chinese manufacturers a stronger domestic alternative, particularly while major DRAM suppliers prioritize high-margin AI and data-center products.
Availability remains a key advantage for CXMT-based modules in China, although supply could tighten as domestic AI companies sign long-term agreements. The demonstrations do not guarantee that every retail kit will reach 9,000 MT/s or maintain CL28 timings, but they show that CXMT memory is becoming increasingly competitive for enthusiasts, gamers, and PC builders.