Rambus launches GDDR7 Memory Controller IP

Rambus launches GDDR7 Memory Controller IP

Technology News |
By Nick Flaherty

Rambus has launched memory controller IP for the next generation GDDR7 standard.

The Rambus GDDR7 graphics memory Controller provides a full-featured, bandwidth-efficient solution for GDDR7 memory implementations. It supports 40 Gbit/s operation providing 160 Gbyte/s throughput for a GDDR7 memory device. This is a 67% increase over the throughput of the Rambus GDDR6 Controller.

The controller enables a new generation of memory deployments for cutting-edge AI accelerators, graphics and high-performance computing (HPC) applications using graphics processor units (GPUs). It supports all GDDR7 link features including PAM3 and NRZ signaling and also has flexible interface support for the AXI bus standard.

Low-power support includes self-refresh, hibernate self-refresh and dynamic frequency scaling and there is end-to-end data path parity, parity protection for stored registers and comprehensive memory test support to boost reliability. The controller has been validated with the latest GDDR7 VIP and memory vendor memory models

Rambus is pitching this as part of a portfolio alongside HBMe and CXL memory for the next generation of AI systems in data centres to manage memory-bound large language models (LLMs)

LLMs have scaled to over a trillion parameters with data sets in the billions of samples. Training LLMs requires enormous computational power supported by the latest high-performance memory solutions.

“Delivering greater memory performance is mission critical as AI 2.0 workloads push bandwidth requirements higher than ever before,” said Neeraj Paliwal, general manager of Silicon IP, at Rambus. “With our breakthrough GDDR7 Controller IP solution, designers can quickly take advantage of this latest generation of GDDR memory at industry-leading throughput.”

“GDDR7 memory offers significant performance gains over GDDR6,” said Soo-Kyoum Kim, vice president, memory semiconductors at IDC. “The Rambus GDDR7 Controller IP solution will be a vital tool for anyone that wants to take advantage of the improved speed and latency features offered by GDDR7.”

The Rambus GDDR7 Memory Controller IP is available now.


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