Hot Chips 2026: Samsung makes LPDDR5X smart with logic unit in memory (www.tomshardware.com)

Samsung has unveiled the LPDDR5X-PIM memory at Hot Chips 2026, marking the industry’s first low-power memory with integrated logic for in-memory processing. This Processing-in-Memory (PIM) technology enhances efficiency by performing basic calculations directly in-memory, thereby reducing latency and accelerating AI inference tasks, achieving a performance boost of 2.28 times compared to standard LPDDR5X. With the rising costs of traditional High Bandwidth Memory (HBM), PIM integration into LPDDR5X presents a more cost-effective and power-efficient solution for AI applications, tackling the growing demand for memory in AI chip architectures. The LPDDR5X-PIM employs a unique architecture where each memory bank includes its own PIM logic, supporting both traditional DRAM and multi-bank PIM modes. The technology utilizes Address Align Mode (AAM) to streamline data handling, enabling faster computation and reduced data movement. While it maintains advantages in low power consumption, Samsung anticipates that the peak power draw may be higher due to PIM's bursty demands, yet overall power usage should remain lower than conventional DRAM due to fewer required data transfers. This innovation positions LPDDR5X-PIM as a potential game-changer for edge AI applications across mobile, client, and server markets.