Rambus Launches Fastest HBM4E Memory Controller, Achieving 60% Increased Speed Over HBM4 at 4.1 TB/s Per IC

Rambus has unveiled its latest innovation: the world’s fastest HBM controller adhering to the HBM4E standard. This advanced technology achieves impressive transfer speeds of up to 16 Gbps per pin.

Rambus Introduces HBM4E Memory Controller: A Leap Forward for AI Data Centers

Rambus’s latest HBM4E memory controller represents a significant upgrade over its predecessor. With a 60% increase in performance compared to the HBM4 controller, it now delivers pin speeds of up to 16 Gbps (previously 10 Gbps) and achieves a remarkable total bandwidth of 4.1 TB/s per module, surpassing the former maximum of 2.56 GB/s. This innovative HBM4E standard is set to become integral to NVIDIA’s Rubin Ultra GPUs and AMD’s MI500 series accelerators.

A presentation slide titled 'Next-Gen MI500 Series' shows a graph illustrating AMD's projected AI performance increase over

Press Release: Rambus, a leading provider of chip and silicon IP dedicated to enhancing the speed and security of data, has announced its industry-leading HBM4E Memory Controller IP. This state-of-the-art solution is designed to deliver unmatched performance while offering advanced reliability, making it ideal for meeting the high memory bandwidth needs of next-gen AI accelerators and graphics processing units (GPUs).

Built on a successful history with over one hundred HBM design implementations to ensure reliable silicon performance.
Offers up to 16 Gigabits per second per pin with low latency, catering to the requirements of next-generation AI and High-Performance Computing (HPC) tasks.
Enhances Rambus’s well-established silicon IP portfolio of high-performance memory solutions.

Key Features of the Rambus HBM4E Controller:

The HBM4E Controller by Rambus heralds a new era in HBM memory implementations for state-of-the-art AI accelerators, graphics applications, and HPC environments. It supports operational speeds of up to 16 Gbps per pin, translating to an outstanding throughput of 4.1 TB/s per memory device.

A diagram titled 'HBM4E Subsystem Top Level' displays the flow of data between HBM4/4E Controllers and HBM4E PHY with 32

For AI accelerators equipped with eight connected HBM4E devices, this translates to an astounding bandwidth of over 32 TB/s, perfectly suited for handling advanced AI workloads. Moreover, the Rambus HBM4E Controller IP can seamlessly integrate with third-party standard or TSV PHY solutions, facilitating the creation of a comprehensive HBM4E memory subsystem in either 2.5D or 3D packages, ideal for custom System on Chip (SoC) or base die solutions.

Availability and Licensing Information:

The Rambus HBM4E Controller IP is the latest enhancement to Rambus’s cutting-edge digital controller solutions portfolio. Currently available for licensing, early access design partners can initiate engagement immediately.

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