Rambus Pushes DDR5 To 9600 MT/s With Gen2 CKD Chipset, Setting The Stage For Intel Nova Lake & AMD Zen 6 AI PCs

Rambus is rolling out its fastest DDR5 Client Chipset solution, equipped with the Gen2 CKD that drives up to 9600 MT/s memory speeds natively.

Next-Gen CPU Platforms Are About To Get A Big Boost In DDR5 Memory Performance With Rambus's Latest Client Chip Solution

Later this year, we are going to see some brand new additions in the desktop and mobile CPU segments. Intel will have its Nova Lake CPUs out, and AMD will be prepping its next-gen Zen 6-based Ryzen families.

As the industry prepares for these new CPU platforms to power the next iteration of AI PCs, memory firms are accelerating their development to address growing bandwidth and capacity requirements. Rambus is one of the premier IP providers in this segment, and today, they are rolling out their latest DDR5 chipset for client platforms, which includes three major controllers: Gen2 Client Clock Driver (CKD02), PMIC5120 & SPD Hub, enabling up to 9600 MT/s speeds natively.

The Rambus DDR5 9600 Client Chipset supports high-bandwidth, high-capacity, clocked client memory modules and includes:

• Gen2 Client Clock Driver retimes, conditions, and distributes the clock sent from the processor to the DRAM devices on the DIMM
• PMIC5120 efficiently steps down the system voltage supply to the voltage levels needed to power the DRAM and all other active chips on the module
• SPD Hub enables communication of module identification, configuration, and telemetry

Press Release: Rambus, a premier chip and silicon IP provider making data faster and safer, today announced its complete DDR5 9600 Client Memory Module Chipset for high-performance CUDIMM, CQDIMM, and CSODIMM modules in future generation AI PCs. The chipset includes the new Gen2 Client Clock Driver (CKD02), delivering breakthrough performance with support for PC memory module operation of up to 9600 MT/s, Power Management IC (PMIC5120), and Serial Presence Detect Hub (SPD Hub).

With the rise of agentic AI, PCs now plan, execute, and adapt workflows in real time. These workloads require persistent context, concurrent processing, and continuous data movement between the processor and system memory, requiring significant increases in both bandwidth and capacity. At the same time, scaling DDR5 memory beyond 6400 MT/s introduces new technical challenges, including signal degradation, clock jitter, and timing instability.

To address these challenges, the industry is transitioning to clocked memory modules, including CUDIMM and CQDIMM for desktops and CSODIMM for laptops, which incorporate an on-module client clock driver (CKD) to condition and redistribute the clock signal.

The new Rambus DDR5 9600 Client Chipset provides a complete solution for clocked DDR5 modules operating from 8000 to 9600 MT/s. Designed for performance and scalability, the chipset supports next-generation AI PCs, notebooks, and workstations. By addressing signal integrity, power delivery, and system coordination at the module level, Rambus simplifies the design and deployment of high-performance memory module solutions.

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