JEDEC releases new SPHBM4 standard to slash AI memory costs — Narrow 512-bit interface enables dropping expensive interposers for organic substrates
JEDEC has released its new specification that aims to push down the pricing of the ultra-expensive HBM that powers the fastest AI processors. While the new standard will not help relieve the DRAM shortage as it uses large HBM4 DRAM devices, it can make high-bandwidth memory a bit cheaper as it enables attaching SPHBM4 memory stacks without advanced packaging and using inexpensive organic substrates.