🧠 Food for thought

Implications, context, and why it matters.

• CXMT reached 8,000 Mbps on DDR5, but Samsung plus SK hynix use 12 nm for DDR5 versus CXMT’s 17 nm (process node means manufacturing generation; smaller numbers often enable higher efficiency, density) 1.
• CXMT hit 80% DDR5 yield by late 2024 and targets 90% by end-2025; DDR4 sits near 90% (yield is the share of chips per wafer meeting specifications) 1.
• Shortages in China grew as NVIDIA’s High Bandwidth Memory (HBM) demand soaked up supply, equal to RAM in roughly 20 million smartphones 2.
• Some DDR5 prices jumped 307% since September, per TrendForce. CXMT runs 50,000 wafers per month at Fab 2 and plans another 50,000 in 2025, but unclear if this will ease allocations to Chinese smartphone makers 312.
• Intel Diamond Rapids will use 16-channel memory 4. Reports say 2nd-generation MRDIMM can reach 12,800 mega-transfers per second (MT/s) and deliver 1.6 TB/s of bandwidth 4.
• AMD’s upcoming EPYC server processors are expected to adopt JEDEC (the industry group that sets memory standards) MRDIMM (Multiplexer-Ranked DIMM) 5. It is a JEDEC-standard memory module that uses on-module signaling to raise speeds and capacity 5.
• Validation and firmware firms, plus thermal specialists, can prepare before Diamond Rapids launches with Land Grid Array (LGA) 9324 socket. They can help original equipment manufacturers (OEMs) and system integrators qualify CXMT’s MRDIMM alongside incumbents 4.
• Xiaomi, a Chinese smartphone maker, is urgently sourcing memory and giving domestic suppliers entry. Third-party labs and module integrators can build trust by certifying CXMT modules for server platforms 2.