Earlier this month, Samsung introduced the industry's first LPDDR5X-PIM memory, adding in-memory logic to the low-power memory standard, and at Hot Chips 2026, it dove into the memory technology that we've previously seen at play through HBM stacks.
PIM, or Processing-in-Memory, is a technology Samsung demoed as early as 2021, piloted through HBM stacks in AMD accelerators. It's a small bit of logic that sits alongside DRAM cells, allowing basic calculations to happen directly in-memory. By handling those basic calculations locally, Samsung is able to eliminate the processor as a bottleneck and speed up, in particular, AI inference. In inference tasks, Samsung says its LPDDR5X-PIM is 2.28x faster than standard LPDDR5X, in fact.