Devices · 1h ago
JEDEC’s SPHBM4 standard aims to cut AI memory costs by ditching expensive interposers
JEDEC has released the SPHBM4 standard, which enables HBM4-class bandwidth using a narrow 512-bit interface. By eliminating the need for silicon interposers and CoWoS-like packaging, the standard allows cheaper organic substrates. This could significantly reduce costs for AI memory subsystems.
Meridian48 take
The standard’s success hinges on whether organic substrates can deliver the reliability and performance that hyperscalers demand for AI workloads.
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JEDEC releases new SPHBM4 standard to slash AI memory costs — Narrow 512-bit interface enables dropping expensive interposers for organic substrates →
Tom's Hardware
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