SK Hynix And SanDisk Unleash High-Bandwidth Flash To Fix AI Bottlenecks
At the Future of Memory and Storage (FMS) 2026 conference in Santa Clara, memory titans SK hynix and SanDisk have formally released the first open technical specification for High-Bandwidth Flash (HBF) through the Open Compute Project. Developed in tandem with key ecosystem partners including Google DeepMind and Tenstorrent, this new specification aims to break the memory wall crippling enterprise artificial intelligence infrastructure.
See, as parameter counts for frontier neural networks expand beyond hundreds of billions into the trillions, raw High Bandwidth Memory (HBM) capacity on accelerator packages has become a critical financial and physical bottleneck. While HBM supplies the extreme multi-terabyte-per-second throughput necessary to feed modern tensor processing units, its extremely high cost and physical interposer footprint strictly limit total capacity we can actually connect to a GPU. High-Bandwidth Flash resolves this economic mismatch by inserting an intermediate, high-density memory tier directly between power-dense HBM and standard PCIe-attached solid-state drives.
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