Micron's 2027 roadmap: DDR6 with 2x DDR5 bandwidth, 1TB RDIMMs, and 400+ layer NAND

Micron has unveiled its memory and storage roadmap extending into 2027, highlighting substantial enhancements across DDR6, LPDDR6, HBM, and NAND technologies. As AI infrastructure spending surges, pushing hardware costs upward, Micron's 1-Delta node follows 1-Gamma, featuring advanced angstrom-level process control and HKMG CMOS structure. This new node promises roughly 25% higher bit density in advanced DRAM products compared to its predecessor.

Micron has positioned DDR6 as high-reliability server memory for AI data centers, not a direct successor to DDR5 for client PCs. The company anticipates 1-Delta to enter volume production in the second half of 2027, though no official launch date has been announced. Demonstrating a 512GB DDR5 RDIMM at 9,200MT/s in September 2026, Micron is set to introduce 1TB RDIMMs for high-density AI workloads with its next-generation technology. This will reportedly be the industry's highest-capacity RDIMM upon production.

LPDDR6 is projected to deliver 35% better power efficiency than LPDDR5, with even greater improvements at certain densities. Micron is collaborating with partners like Meta to deploy LPDDR6 in AI data centers. The company's next-generation DRAM products will employ 6F² (6-Feature-Square) DRAM, surpassing 4F² in terms of cost, complexity, and capacitor pitch limitations.

Micron is also developing 3D DRAM as a long-term alternative and introducing vHBM, a vertically stacked design that places memory directly on top of the compute die. This novel design aims to improve efficiency by increasing bandwidth per watt in HBM chips. For storage, Micron plans to roll out G11 NAND flash with over 400 layers, targeting double the bit density, 1.5 times the I/O speed, and more than 25% lower energy per data transfer compared to G9.

The new product is expected to enter production in the second half of 2027, with an official launch date yet to be announced.