Samsung begins mass production of 12Gb LPDDR4 DRAM modules, opens possibility of 6GB RAM inside a mobile device
Mark Walton / Ars Technica UK :
Context & Ripple Effects
This is the next rung on a ladder Samsung started climbing ten months earlier with its mass production of 8Gb LPDDR4 modules, which is what first made 4GB-RAM handsets possible. Moving to 12Gb per module doubles what fits in a typical two- or three-package phone design, so 6GB becomes an option without adding physical slots or die count.
The coverage arc here is unusually clean: the same company keeps announcing each density jump — 8Gb, then 12Gb, then the 10nm 8GB LPDDR5 chip three years out, and eventually 16GB LPDDR5 on EUV lithography — which makes this 2015 announcement a data point in a predictable cadence rather than a one-off.
First-order effects
- Flagship handset makers sourcing Samsung memory can now spec 6GB of RAM using the same package count as today's 3–4GB devices, making high-memory configurations cheaper and thinner.
Second-order effects
- Rival DRAM suppliers face pressure to match 12Gb LPDDR4 yields quickly or cede the premium-phone bill of materials; device makers gain leverage by playing Samsung against them on pricing for the new density.
Third-order effects
- If the density-doubling cadence holds — as the later LPDDR5 and EUV announcements suggest it did — mobile RAM stops being a differentiator at the top end and becomes a baseline expectation that pushes flagships toward bigger caches, heavier multitasking, and more on-device workloads.
The trend: Mobile DRAM density advances on a steady generational cadence, with Samsung repeatedly first to mass production and each jump resetting what flagship phones ship with.