Rambus DDR5 RCD Takes Performance to 6400 MT/s

We have said it before, and we will say it again, you can never have enough memory bandwidth. Nowhere is this statement truer than in the data center where advanced workloads for high-performance computing (HPC) and artificial intelligence/machine learning (AI/ML) continue to demand unprecedented levels of bandwidth, and then some more.

DDR5 memory is set to be a game changer in this respect, and as DDR5 scales to offer new levels of performance, Rambus continues to set the pace as a leader in cutting-edge DDR5 memory chip solutions.

Today marks another important milestone in the DDR5 journey as we announce that we have advanced the performance of our DDR5 Registering Clock Driver (RCD) to 6400 MT/s. We were first in the industry to 5600 MT/s, and we have raised the bar once again, ready to support another major performance upgrade in DDR5 RDIMMs. You can read more in today’s press here [insert link to PR].

With a 33% increase in data rate and bandwidth over current production 4800 MT/s solutions, the Rambus 6400 MT/s DDR5 RCD enables a new level of main memory performance for data center servers. Delivering industry-leading latency and power, it offers optimized timing parameters for improved RDIMM margins.

With DDR5 memory, more intelligence is built into the RDIMMs enabling over double the data rate and four times the capacity of DDR4 RDIMMs, while at the same time increasing memory and power efficiency.

The Rambus DDR5 memory interface chipset is built on over 30 years of high-performance memory experience and the company’s renowned signal integrity (SI) / power integrity (PI) expertise. The chipset includes the RCD, as well as Serial Presence Detect (SPD) Hub and Temperature Sensors, two key components for server systems. The SPD Hub and Temperature Sensors improve DDR5 DIMM system and thermal management in order to achieve higher performance levels within the desired power envelope.

DDR5 is set to eventually scale to 8400 MT/s and the journey will be an exciting one as we see each new generation of servers launched into the market.