Renesas Unleashes Industry’s First and Fastest DDR5 RCD, Enabling 9600 MT/s Speeds on RDIMM Modules
Renesas Electronics Corporation has introduced what it calls the industry’s first sixth generation DDR5 Registered Clock Driver for RDIMM platforms, reaching transfer speeds of 9600 MT per second. The announcement was detailed in the company’s official press release, which confirms that this new Gen6 RCD establishes a new performance benchmark for next generation memory modules used in servers, artificial intelligence infrastructure, and high performance computing environments. The new component represents an important step forward for designs that require extremely high memory bandwidth for large scale data processing and complex inference workloads.
Renesas states that the Gen6 RCD provides up to ten percent more bandwidth compared to the company’s Gen5 product, increasing data rates from 8800 MT per second to 9600 MT per second. Importantly, the new device is also fully backward compatible with existing Gen5 platforms so that customers can adopt the faster RCD without requiring a complete system redesign. The company highlights a series of technical improvements that are intended to support reliable high frequency operation. These include enhanced signal integrity and improved power efficiency, an expanded Decision Feedback Equalization architecture with eight taps and very fine granularity for tuning, and the addition of Decision Engine Signal Telemetry and Margining, which provides system level diagnostics, real time insight into signal quality, and better margin visibility at high speeds. According to Renesas, these advancements are critical for meeting the rapidly rising memory bandwidth demands of artificial intelligence models, high performance compute clusters, and data center deployments at scale.
Renesas also noted that its longstanding leadership in DDR5 RCD development is strengthened through ongoing collaboration with CPU designers, DRAM manufacturers, and major enterprise customers. One of the partners, Samsung Electronics, publicly acknowledged the milestone. Indong Kim, Vice President of DRAM Product Planning, said that Samsung has worked with Renesas across several generations of memory interface components including the qualification of the Gen5 DDR5 RCD and PMIC5030, and that the company looks forward to integrating the new Gen6 RCD across multiple system platforms to support the growing demands of AI, HPC, and other memory intensive workloads.
The new RRG5006x Gen6 RCD is already being sampled to select customers, including all major DRAM suppliers. Renesas expects full production availability in the first half of 2027. As server vendors and hyperscalers prepare for increasingly demanding AI and computational workloads, the arrival of DDR5 RDIMMs capable of approaching ten thousand MT per second represents an important milestone for the next generation memory ecosystem.
Are you excited for DDR5 RDIMM speeds approaching 10,000 MT/s, and what workloads do you think will benefit most from this leap? Tell us below.
