Several dynamics are driving this:
The 2024–present memory shortage—dubbed "RAMmageddon" or the "RAMpocalypse"—is unlike the pandemic-era chip crunch. It's not a short-term supply-chain disruption. It's a structural reallocation of manufacturing capacity toward high-margin AI memory products, starving consumer and enterprise PC markets .
AI data centers are expected to consume roughly 70% of global high-end DRAM production in 2026 . Hyperscalers such as Meta, Alphabet, and Microsoft are each spending $70–93 billion-plus annually on AI infrastructure, securing memory supply years in advance .
That leaves consumer-grade memory—DDR4, DDR5, and NAND flash—scrambling for the remaining 30% of output. The result has been brutal pricing:
Analysts broadly expect prices to keep climbing through at least late 2026. IDC projects the shortage could persist into 2027, with PC shipments potentially declining up to 9% year-on-year in a worst-case scenario .
The knock-on effects are already visible on store shelves:
The structural nature of this shortage makes it hard to resolve quickly. IDC expects 2026 DRAM supply growth to be only 16% year-on-year, below historical norms, while demand continues to outpace expansion .
Sandisk has been developing an architecture called High-Bandwidth Flash (HBF) specifically to address the memory wall from the capacity side .
HBF is a NAND-based alternative designed to sit in the same package as the GPU, giving the processor fast access to a much larger pool of memory than HBM alone can provide. Where high-end HBM stacks today top out in the tens of gigabytes, HBF aims to deliver 8–16x the capacity at comparable bandwidth and similar total cost .
Key technical points:
Sandisk has been moving HBF from lab to industry standard through a series of deliberate steps:
HBF is still in the specification and validation phase; there is no announced commercial production timeline beyond the sampling targets. But the partnership with SK hynix and the push through OCP signal an intent to make HBF an open, multi-vendor standard rather than a proprietary Sandisk product .
HBF represents one of the first memory architectures designed from the ground up for the inference era. Whether it can close the memory wall at scale won't be clear until real silicon ships, but the direction is unambiguous: the AI industry is being rebuilt around memory, not just logic.