半导体行业观察·2025-07-24 00:46Core Viewpoint - The next generation of PC memory, DDR6, is set to be commercially available by 2027, with significant advancements in speed and efficiency compared to its predecessor, DDR5 [3][4]. Summary by Sections DDR6 Development - DDR6 standard is being drafted by the end of 2024 and is expected to enhance various fields, including gaming and AI workloads [3]. - Major chip manufacturers like Samsung, Micron, and SK Hynix are progressing well with prototype designs and are focusing on controller development [3][4]. - Intel and AMD are collaborating on interface testing for DDR6, with platform validation expected to begin next year [3]. Performance Enhancements - DDR6 will feature a significant architectural upgrade, starting with a default speed of 8,800 MT/s and potentially reaching up to 17,600 MT/s, which is double the official limit of DDR5 [3][4]. - Overclocked modules may achieve speeds of up to 21,000 MT/s [3]. Multi-Channel Architecture - DDR6 will introduce a multi-channel architecture with four 24-bit sub-channels, improving parallel processing and bandwidth efficiency compared to DDR5's dual 32-bit layout [4]. - This new design will require higher standards for module I/O design and signal integrity [4]. CAMM2 Specification - CAMM2 is positioned as a key specification for DDR6, particularly in laptops and compact devices, promising better performance and efficiency compared to traditional DIMM and SO-DIMM [4]. LPDDR6 Development - The final draft of LPDDR6 has been released, allowing semiconductor companies and memory manufacturers to begin testing and validation under a unified framework [4]. - Companies like Qualcomm, MediaTek, and Synopsys are developing hardware to support LPDDR6, with Samsung and SK Hynix planning to start mass production by the end of the year [4]. Historical Context and Expectations - DDR5 was officially established in July 2020, and DDR6 is anticipated to follow a similar trajectory of rapid adoption [6]. - Samsung predicts that DDR6 will achieve a maximum operating speed of 12,800 MT/s, with potential overclocking capabilities reaching 16,800 MT/s [7][9]. Memory Speed and Bandwidth - The development of DDR memory standards shows a significant increase in speed and bandwidth, with DDR6 expected to provide at least 134.4 GB/s of memory bandwidth [12][13]. - The number of memory channels in DDR6 will increase to four, doubling the count from DDR5, and the number of memory groups will also double to 64 [11][12].