DDR6 Development Aims for Commercial Shipments in 2028

It seems we are not too far from the next-generation Double Data Rate 6 (DDR6) memory for desktops and servers, as memory manufacturers are working with JEDEC to establish a new standard. According to South Korean media outlet The Elec, major memory makers such as SK hynix, Samsung, and Micron have reportedly begun designing DDR6 in their labs and are gradually coordinating module development with substrate manufacturers. This collaborative effort is taking place under the supervision of JEDEC, the industry authority that oversees standard development and ensures a common foundation for design. Manufacturers could have accessed JEDEC’s first DDR6 draft since 2024, but the draft still lacks concrete specifications such as finalized voltage ranges, signal usage, power envelopes, and pinout design. However, this is expected to change as manufacturers are now accelerating standard development.

Last year, we reported that the major players mentioned above had already moved past the prototype stages and embarked on rigorous validation cycles. Perhaps the most interesting aspect is the designated throughput of 8,800 MT/s, with plans to scale up to a staggering 17,600 MT/s, nearly doubling the ceiling of today’s DDR5. This increase is driven by DDR6’s 4×24-bit sub-channel architecture, which requires entirely new approaches to signal integrity. It also differs from DDR5’s current 2×32-bit sub-channel structure. To overcome the physical limits faced by DIMM form factors at higher speeds, the industry is betting on CAMM2 technology. Early indications suggest that server platforms will lead the change, with high-end notebooks following once manufacturing ramps up.

Last year’s developments pointed to a 2027 launch. However, this may only apply to customer validation, as commercialization is now expected in 2028. With new server shipments and overall DDR5 usage around 80% last year, and expected to reach about 90% this year, the older DDR4 memory is now being considered for discontinuation. This would make room for newer standards and free up major fab capacity to manufacture these new DDR6 modules.