SK Hynix and SanDisk reveal first specs for High Bandwidth Flash — but don't get too excited, you probably…
- The first HBF specification defines stacks of up to 512GB with three bandwidth grades from roughly 0.4TB/s to 3.0TB/s, connected to processors over UCIe and published openly through the Open Compute Project
- Google and Tenstorrent have joined the consortium, but Nvidia is not among the named participants, which matters more to HBF's prospects as a de facto alternative to increasingly pricey HBM
- Samples of the first AI inference devices built with HBF are expected to show up in early 2027
SK Hynix and SanDisk have published the first technical specification for High Bandwidth Flash.
Released through the Open Compute Project to coincide with the opening of the Future of Memory and Storage conference, it makes for an impressively fast milestone, arriving six months after the HBF workstream was convened at SanDisk's Milpitas headquarters and a year after the two companies first agreed to standardize the technology.
The solution, at least...
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