Papers Archives - Rambus

HBM4 Memory: Break Through to Greater Bandwidth

fongj@rambus.com — Tue, 02 Sep 2025 19:49:28 +0000

AI/ML’s demands for greater bandwidth are insatiable driving rapid improvements in every aspect of computing hardware and software. HBM memory is the ideal solution for the high bandwidth requirements of AI/ML training, but it entails additional design considerations given its 2.5D architecture. Now we’re on the verge of a new generation of HBM that will raise memory and capacity to new heights. Designers can realize new levels of performance with the HBM4-ready memory subsystem solution from Rambus.

MACsec Fundamentals

fongj@rambus.com — Thu, 21 Aug 2025 21:00:16 +0000

For end-to-end security of data and devices, data must be secured both when it as rest (stored on a connected device) and when it is in motion (communicated between connected devices). For data at rest, a hardware root of trust anchored in silicon provides that foundation upon which all device security is built. Similarly, MACsec security anchored in hardware at the foundational communication layer provides that basis of trust for data in motion.

Expanding Server Memory Capabilities with MRDIMM Technology

fongj@rambus.com — Thu, 03 Jul 2025 22:25:45 +0000

As per socket compute density increases, the amount of directly accessible, low-latency memory bandwidth and capacity to adequately feed data to the multiple cores needs to scale accordingly. Scaling memory bandwidth by increasing raw DRAM component bandwidth or by increasing the number of memory channels has challenges and is reaching limits. JEDEC has unveiled the development of a new DIMM technology called Multiplexed Rank Dual Inline Memory Modules (MRDIMM) to address the bandwidth challenge.

MIPI DSI-2 & VESA Video Compression Drive Performance for Next-Generation Displays

fongj@rambus.com — Mon, 03 Jun 2024 19:44:00 +0000

MIPI® Alliance technology has helped enable the dramatic growth of the mobile phone market. The function and capabilities of MIPI interface solutions have grown dramatically as well. MIPI DSI-2SM has become the leading display interface across a growing range of products including smartphones, AR/VR, IoT appliances and ADAS/autonomous vehicles. As the application space has expanded, so too have the performance requirements. Learn how MIPI DSI-2 interface and VESA® DSC visually lossless compression technology can meet the challenges of next-generation displays.

Supercharging AI Inference with GDDR7

fongj@rambus.com — Mon, 22 Apr 2024 20:58:45 +0000

A rapid rise in the size and sophistication of AI inference models requires increasingly powerful AI accelerators and GPUs deployed in edge servers and client PCs. GDDR7 memory offers an attractive combination of bandwidth, capacity, latency and power for these accelerators and processors. The Rambus GDDR7 Memory Controller IP offers industry leading GDDR7 performance of up to 40 Gbps and 160 GB/s of available bandwidth per GDDR7 memory device.

Data Center Evolution: The Leap to 64 GT/s Signaling with PCI Express 6.1

fongj@rambus.com — Tue, 23 Jan 2024 19:42:36 +0000

The PCI Express® (PCIe®) interface is the critical backbone that moves data at high bandwidth and low latency between various compute nodes such as CPUs, GPUs, FPGAs, and workload-specific accelerators. With the torrid rise in bandwidth demands of advanced workloads such as AI/ML training, PCIe 6.1 jumps signaling to 64 GT/s with some of the biggest changes yet in the standard.

Securing Automotive Ethernet with MACsec Silicon IP

fongj@rambus.com — Thu, 21 Sep 2023 17:53:54 +0000

In today’s cars, the Ethernet standard is the go-to solution for connecting zonal gateways to the central compute units that handle ADAS functionality. However, in-vehicle networks are vulnerable to a number of security threats, including eavesdropping, denial-of-service attacks, man-in-the middle attacks, and unauthorized access. This white paper explores how MACsec provides an effective solution to address the security challenges faced by automotive Ethernet networks and how Rambus MACsec IP solutions can be deployed across a range of use cases.

Protecting Data and Devices Now and in the Quantum Computing Era

fongj@rambus.com — Wed, 12 Jul 2023 21:01:49 +0000

Quantum computing is being pursued across industry, government and academia with tremendous energy and is set to become a reality in the not-so-distant future. Once sufficiently large quantum computers exist, traditional asymmetric cryptographic methods for key exchange and digital signatures will be broken. Many initiatives have been launched throughout the world to develop and deploy new quantum-resistant cryptographic algorithms, known as Post-Quantum Cryptography (PQC).

RT-600 Root of Trust Series: A New Generation of Security Anchored in Hardware

fongj@rambus.com — Wed, 12 Jul 2023 21:01:45 +0000

This latest generation of the Rambus RT-600 Root of Trust IP offers many new features designed to support the security needs of customers today and into the future. These features include Quantum Safe Cryptography, Caliptra Root of Trust for Measurement (RoTM) emulation, an embedded physical unclonable function (PUF), as well as many architectural improvements, such as larger memory space and 64-bit addressing support.

HBM3 and GDDR6: Memory Solutions for AI

fongj@rambus.com — Wed, 19 Apr 2023 21:00:44 +0000

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.