Intel Makes a Comeback to Memory Market: 512GB per Chip ZAM Takes on HBM
After more than four decades away from the memory market, Intel is staging its return with a major new offering. Intel and SoftBank-owned subsidiary SAIMEMORY have unveiled further details on their jointly developed Z Angle Memory (ZAM). The technology delivers up to 512 GB per chip, cuts power consumption by 40–50% versus mainstream HBM, is slated for trial production in 2027, and targets commercial roll-out in 2029.
At present, the HBM space is tightly controlled by Samsung, SK Hynix and Micron, with extremely high price levels. Intel’s comeback directly addresses one of the most critical bottlenecks of the AI era.
ZAM’s core innovation is its namesake Z-angle interconnect. Conventional HBM stacks DRAM dies flat, connected via through-silicon vias, and hits thermal limits beyond 16–20 layers. ZAM uses an interleaved interconnect with diagonal Z-shaped routing, combined with copper-to-copper hybrid bonding, to create a central thermal pillar for heat dissipation. Paired with a capacitor-free design and Intel’s EMIB interconnect, it enables high-speed links to AI chips while lowering thermal resistance.
On paper, 512 GB per chip is two to three times higher than today’s mainstream HBM, with production cost potentially up to 60% lower. SoftBank-backed SAIMEMORY handles design, IP and commercialization; Intel contributes stacking and memory-architecture expertise. Trial and mass production will be carried out by PSMC and Japan’s Shinko Electric Industries, with Fujitsu and the University of Tokyo also as partners.
ZAM remains at the prototype-validation stage after its first public reveal at Intel Connection Japan 2026. Its 2027 trial and 2029 commercialization timeline aligns roughly with the wider roll-out of HBM4. For consumer PC platforms the near-term impact is limited, but additional competition in high-performance memory is a positive development for the industry — including the notebook and AIDC supply chains that MCHUANG serves.