DDR5，AMD的新突破

Core Viewpoint - AMD is seeking a new DDR5 memory standard patent that aims to double the bandwidth to 12.8 Gbps, but its immediate adoption in PCs is uncertain [2][4][5]. Summary by Sections AMD's Patent Application - AMD's patent application for a high-bandwidth dual in-line memory module (HB-DIMM) has been revealed, designed to enhance memory bandwidth through pseudo channels, buffer chips, and intelligent signal routing [4]. - The document highlights the increasing memory bandwidth demands of modern computing platforms, particularly for high-performance graphics processors and servers [4]. Technical Details - The HB-DIMM design consists of memory chips and buffer chips, with data being transmitted at twice the rate of the memory chips via the host bus [4]. - The architecture includes a memory controller circuit (RCD) that routes command/address signals to multiple memory chips, effectively creating at least two independently addressable pseudo channels [4]. Potential Impact and Adoption - The proposed HB-DIMM could potentially double the native speed of DDR5 from 6.4 Gbps to 12.8 Gbps without requiring new generation memory chips [5]. - However, the adoption of this new standard may face challenges, as most DRAM chips currently sold comply with JEDEC's DDR standards, and the likelihood of widespread adoption hinges on support from major industry players like Intel [5].