GDDR6 Controller

The Rambus GDDR6 controller core is designed for use in applications requiring high memory throughput including graphics, advanced driver assistance systems (ADAS), data center and artificial intelligence (AI). With the Rambus GDDR6 PHY it comprises a complete GDDR6 memory interface subsystem.

How the 24G GDDR6 Memory Interface Subsystem works

Originally designed for graphics applications, GDDR6 is a high-performance memory solution that can be used in a variety of compute-intensive applications.

The GDDR6 controller fully supports the bandwidth and dual channel capabilities of the Rambus GDDR6 PHY. It maximizes memory bandwidth and minimizes latency via Look-Ahead command processing. The core is DFI compatible (with extensions for GDDR6) and supports AXI or native interface to user logic.

The Rambus GDDR6 PHY is fully compliant to the JEDEC GDDR6 (JESD250C) standard, supporting up to 24 Gb/s per pin. The GDDR6 interface supports 2 channels, each with 16 bits for a total data width of 32 bits. At 24 Gb/s per pin, the Rambus GDDR6 PHY offers a bandwidth of 96 GB/s. Rambus works directly with customers to provide full-system signal and power integrity analysis, creating an optimized chip layout. Customers receive a hard macro solution with a full suite of test software for quick turn-on, characterization and debug.

GDDR6 Memory Interface Subsystem
GDDR6 Memory Interface Subsystem

The Rambus GDDR6 PHY and controller used together comprise a complete GDDR6 memory interface subsystem. Alternatively, these cores can be licensed separately to be paired with 3rd-party GDDR6 controller or PHY solutions.

From Data Center to End Device: AI/ML Inference with GDDR6

From Data Center to End Device: AI/ML Inference with GDDR6

Created to support 3D gaming on consoles and PCs, GDDR packs performance that makes it an ideal solution for AI/ML inference. As inference migrates from the heart of the data center to the network edge, and ultimately to a broad range of AI-powered IoT devices, GDDR memory’s combination of high bandwidth, low latency, power efficiency and suitability for high-volume applications will be increasingly important. 

Solution Offerings

Protocol Compatibility

ProtocolData Rate (Gbps) Max. Application
GDDR624AI, Data Center, Graphics
HBM3 and GDDR6: Memory Solutions for AI

HBM3 and GDDR6: Memory Solutions for AI

AI/ML changes everything, impacting every industry and touching the lives of everyone. With AI training sets growing at a pace of 10X per year, memory bandwidth is a critical area of focus as we move into the next era of computing and enable this continued growth. AI training and inference have unique feature requirements that can be served by tailored memory solutions. Learn how HBM3 and GDDR6 provide the high performance demanded by the next wave of AI applications.
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