Renesas Electronics has delivered the industry’s first sixth-generation Registered Clock Driver (RCD) for DDR5 Registered Dual In-line Memory Modules (RDIMMs), the first to achieve a data rate of 9600 Mega Transfers Per Second (MT/s). This breakthrough marks a significant leap from the 8800 MT/s performance of Renesas’s Gen5 RCD, setting a new standard for memory interface performance in data centre servers.
The Gen6 DDR5 RCD provides 10% increase on bandwidth over its predecessor, Gen5 RCD (9600 MT/s versus 8800 MT/s), but it provides backward compatibility with Gen5 Platforms. It also provides better signal integrity and power efficiency, and an expanded decision feedback equalization architecture that offers eight taps and 1.5mV granularity for superior margin tuning.
The new DDR5 RDIMMs are needed to keep pace with the ever-increasing memory bandwidth demands of Artificial Intelligence (AI), High-Performance Compute (HPC) and other data centre applications. Renesas has been instrumental in the design, development and deployment of the new RDIMMs, collaborating with industry leaders including CPU and memory providers, along with end customers. Renesas is the leader in DDR5 RCDs, building on its legacy of signal integrity and power optimization expertise.
“Explosive growth of generative AI is fuelling higher SoC core count. This is driving unprecedented demand for memory bandwidth and capacity as a critical enabler of data center performance,” said Sameer Kuppahalli, Vice President of Memory Interface Division at Renesas.
Renesas is sampling the new RRG5006x RCD to select customers today, including all major DRAM suppliers. Production availability is expected in the first half of 2027. More information about Renesas’ memory interface solutions is available at www.renesas.com//ddr5.
