AMD's memory patent outlining a 'new, improved RAM' made from DDR5 memory isn't a new development — HB-DIMMs already superseded, probably won't come to market

AMD's recent patent on a 'new, improved RAM' made from DDR5 memory is not a novel development, as the technology has already been superseded by MRDIMMs that are currently on the market. The patent outlines HB-DIMMs, a memory module with multiplexed accesses over pseudo-channels, doubling the effective transfer rate of standard DDR5 DRAM. AMD's recent patent activity is likely just to protect intellectual property, and the company is expected to support JEDEC's MRDIMM open standard with its Zen 6-based EPYC 'Venice' processors. While MRDIMMs are available and offer performance gains, they are expensive, with costs significantly higher than standard DDR5 RDIMMs.