On-Package Memory With UCIe To Improve Bandwidth Density And Power Efficiency (AMD, Intel Corp.)

Researchers from Intel Corporation and AMD have published a technical paper proposing the use of On-Package Memory with Universal Chiplet Interconnect Express (UCIe) to address the memory wall challenge in emerging computing applications like Artificial Intelligence (AI). By enhancing UCIe with memory semantics, they aim to provide power-efficient bandwidth and cost-effective on-package memory solutions. Their approaches involve reusing existing LPDDR6 and HBM memory through a logic die connected to the SoC using UCIe, as well as having the DRAM die support UCIe natively. These methods promise significantly higher bandwidth density, lower latency, reduced power consumption, and lower costs compared to current HBM4 and LPDDR on-package memory solutions.