• Skip to primary navigation
  • Skip to main content
  • Skip to footer
  • English
  • Investor Relations
  • Resource Library
  • Newsroom
  • Blog
  • Careers
  • Support Center
Rambus Logo

Rambus

At Rambus, we create cutting-edge semiconductor and IP products, spanning memory and interfaces to security, smart sensors and lighting.

  • Products
      • All
          • Memory Interface Chips
          • DIMM Chipsets
          • DDR5 DIMM Chipset
          • DDR4 NVRCD
          • DDR4 Register Clock Driver
          • DDR4 Data Buffer
          • CXL Memory Interconnect Initiative
          • Interface IP
          • Memory PHYs
          • GDDR6 PHY
          • HBM3 PHY
          • HBM2E PHY
          • DDR4 PHY
          • More…
          • SerDes PHYs
          • PCIe 6.0 PHY
          • PCIe 5.0 PHY
          • 32G C2C PHY
          • 32G PHY
          • 28G PHY
          • More…
          • Digital Controllers
          • Memory Controllers
          • CXL & PCI Express Controllers
          • MIPI Controllers
          • Video Compression and Forward Error Correction Cores
          • Security IP
          • Root of Trust Solutions
          • Security Protocol Engines
          • Inline Cipher Engines
          • Crypto Accelerator Cores
          • DPA Countermeasures
          • Software Protocols & Crypto Toolkits
          • Anti-Counterfeiting
          • Provisioning and Key Management
      • Memory Interface Chips
        • DIMM Chipsets
          • DDR5 DIMM Chipset
          • Non-Volatile DDR4 Registering Clock Driver
          • DDR4 Register Clock Driver
          • DDR4 Data Buffer
          • DDR3 Register Clock Driver
          • DDR3 Isolation Memory Buffer
        • CXL Memory Interconnect Initiative

        • Made for high speed, reliability and power efficiency, our DDR3, DDR4, and DDR5 DIMM chipsets deliver top-of-the-line performance and capacity for the next wave of computing systems. Learn more about our Memory Interface Chip solutions
      • Interface IP
          • Memory PHYs
            • GDDR6 PHY
            • HBM3 PHY
            • HBM2E PHY
            • DDR4 PHY
            • DDR4 Multi-modal PHY
            • DDR3 PHY
          • SerDes PHYs
            • PCIe 6.0 PHY
            • PCIe 5.0 PHY
            • PCIe 4.0 PHY
            • 32G C2C PHY
            • 32G PHY
            • 28G PHY
            • 16G PHY
            • 12G PHY
            • 6G PHY
          • Digital Controllers
            • HBM3 Controller
            • HBM2E Controller
            • GDDR6 Controller
            • LPDDR5 Controller
            • CXL 2.0 Controller
            • PCIe 6.0 Controller
            • PCIe 5.0 Controller
            • MIPI CSI-2/DSI-2 Controllers
            • Video Compression and Forward Error Correction Cores
            • More…

        • With their reduced power consumption and industry-leading data rates, our line-up of memory interface IP solutions support a broad range of industry standards with improved margin and flexibility. Learn more about our Interface IP solutions
      • Security IP
          • Root of Trust Solutions
          • Security Protocol Engines
            • MACsec Engines
            • IPsec, TLS, SSL Multi-Protocol Engines
            • High Speed Public Key Accelerator
          • Inline Cipher Engines
          • Crypto Accelerator Cores
            • DPA Resistant Cores
            • Basic Crypto Blocks
          • Anti-Counterfeiting
            • CryptoFirewall Cores
            • Circuit Camouflage Technology
          • DPA Countermeasures
            • DPA Resistant Cores
            • DPA Resistant Software Libraries
            • DPA Workstation Platform
          • Software Protocols & Crypto Toolkits
            • IPsec Toolkit
            • FIPs Cryptographic Libraries
            • MACsec Toolkit
            • IoT Security Framework
          • CryptoMedia
            • Content Protection Core
            • Content Protection Services
          • Provisioning and Key Management
            • CryptoManager Provisioning
            • CryptoManager Device Key Management

        • From chip-to-cloud-to-crowd, Rambus secure silicon IP helps protect the world’s most valuable resource: data. Securing electronic systems at their hardware foundation, our embedded security solutions span areas including root of trust, tamper resistance, content protection and trusted provisioning. Learn more about our Security IP offerings
  • Markets
      • AI & Machine Learning
        • Speed and Security for the Artificial Intelligence & Machine Learning Revolution
          • Products
          • SerDes PHYs
          • Memory PHYs
          • Digital Controllers
          • Memory Interface Chips
          • Root of Trust
          • Crypto Accelerator Cores
          • Protocol Engines
          • Provisioning and Key Management
          • AI & Machine Learning
      • Automotive
        • Providing Performance & Security for the Connected Car
          • Products
          • Memory PHYs
          • SerDes PHYs
          • Digital Controllers
          • Root of Trust
          • PKE Engine
          • MACsec Engines
          • Crypto Accelerator Cores
          • Provisioning and Key Management
          • Explore Automotive
      • Data Center
        • Optimizing capacity, connectivity and capability of the cloud
          • Products
          • SerDes PHYs
          • Memory PHYs
          • Digital Controllers
          • Memory Interface Chips
          • Root of Trust
          • MACsec Engines
          • Software Protocols
          • Provisioning and Key Management
          • See Data Center
      • Edge
        • Catching a tidal wave of data
          • Products
          • Memory PHYs
          • SerDes PHYs
          • Digital Controllers
          • Root of Trust
          • Crypto Accelerator Cores
          • Protocol Engines
          • Software Protocols
          • Discover Edge
      • Government
        • Securing Mission-critical Systems
          • Products
          • Root of Trust
          • Protocol Engines
          • Anti-Tamper Cores
          • Provisioning and Key Management
          • DPA Workstation Platform
          • SerDes PHYs
          • Memory PHYs
          • Digital Controllers
          • See Government
      • IoT
        • Making IoT Data Safe & Fast
          • Products
          • Root of Trust
          • TLS Toolkits
          • Provisioning and Key Management
          • Memory PHYs
          • SerDes PHYs
          • Digital Controllers
          • Explore IoT
  • Resources
    • Inventions
    • Buying Guide
    • Resource Library
      • Webinars
      • Product Selector
  • About
      • Corporate Overview
      • Leadership
      • Inventors
      • Careers
      • Locations
      • Investor Relations
      • Newsroom
      • Blog
      • Events
      • Partnerships
      • Certifications
      • Corporate Responsibility
      • Contact
Home > Press Releases > Corporate > Technology > Rambus Demonstrates Superior Power Efficiency of World’s Fastest Memory

Rambus Demonstrates Superior Power Efficiency of World’s Fastest Memory

7.2Gbps XDR™ memory system uses 40% less power than GDDR5 system

LOS ALTOS, CALIFORNIA, UNITED STATES – 06/23/2009 – Rambus Inc. (NASDAQ:RMBS), one of the world’s premier technology licensing companies specializing in high-speed memory architectures, today showcased a silicon demonstration of a complete XDR™ memory system running at data rates up to 7.2Gbps with superior power efficiency. This silicon demonstration consists of Elpida’s recently-announced 1Gb XDR DRAM device and an XIO memory controller transmitting realistic data patterns. The XIO memory controller is up to 3.5 times more power efficient than a GDDR5 controller, and the total memory system can provide up to two times more bandwidth than GDDR5 at equivalent power. In addition, the XIO memory controller demonstrated bi-modal operation with support for both XDR DRAM as well as next-generation XDR2 DRAM.

“Future graphics and multi-core processors require significantly higher memory performance under extremely challenging power and thermal constraints,” said Martin Scott, senior vice president of Research and Technology Development at Rambus. “This technology demonstration highlights the outstanding power efficiency of the XDR and XDR2 memory architectures at performance levels from 3.2 to 7.2Gbps with scalability to well over 10Gbps.”

This silicon demonstration, shown at Denali MemCon 2009 in San Jose, is the first implementation supporting the XDR memory architecture roadmap incorporating innovations developed as part of Rambus’ Terabyte Bandwidth Initiative. Implemented in the bi-modal XIO memory controller for XDR2 operation, these innovations include:

  • Fully Differential Memory Architecture (FDMA) – enhances signal integrity and increases performance through point-to-point differential signaling of clock, data, and command/address (C/A), an industry first;
  • FlexLink™ C/A – reduces pin count and increases scalability; and
  • Enhanced FlexPhase™ – enables the world’s highest memory signaling rates while simplifying routing and board design.

In addition, the XDR2 memory architecture includes:

  • Micro-threading of the DRAM core – introduced by Rambus in early 2005, increases data transfer efficiency and reduces power consumption; and
  • 16X Data Rate – allows for extremely high data rates with the use of a relatively low-speed system clock.

Built on these innovations, an XDR2 memory system can provide memory bandwidths of over 500GB/s to an SoC. A single 4Byte-wide, 9.6Gbps XDR2 DRAM device can deliver up to 38.4GB/s of peak bandwidth, and the XDR2 architecture supports a roadmap to device bandwidths of over 50GB/s.

With these capabilities, the XDR and XDR2 memory architectures are scalable across a broad range of performance appropriate for multi-core computing, graphics, gaming, and consumer electronics. The XDR memory architecture has already been adopted in products including the Sony PLAYSTATION®3 computer entertainment system, DLP® projectors, Teradici PC-over-IP computing systems, and Toshiba’s Qosmio® laptop PCs and HDTV chip sets.

About Rambus Inc.

Rambus is one of the world’s premier technology licensing companies specializing in the invention and design of high-speed memory architectures. Since its founding in 1990, the Company’s patented innovations, breakthrough technologies and renowned integration expertise have helped industry-leading chip and system companies bring superior products to market. Rambus’ technology and products solve customers’ most complex chip and system-level interface challenges enabling unprecedented performance in computing, communications and consumer electronics applications. Rambus licenses both its world-class patent portfolio as well as its family of leadership and industry-standard interface products. Headquartered in Los Altos, California, Rambus has regional offices in North Carolina, India, Germany, Japan, and Taiwan. Additional information is available at www.rambus.com.

Footer

About

  • Corporate Overview
  • Leadership
  • Careers
  • Locations
  • Investor Relations
  • News
  • Corporate Responsibility

Products

  • Memory PHYs
  • SerDes PHYs
  • Digital Controllers
  • Server DIMM Chipsets
  • Root of Trust Solutions
  • Provisioning and Key Management
  • Protocol Engines
  • Crypto Accelerator Cores
  • Software Protocols
  • DPA Countermeasures
  • Anti-Counterfeiting
  • CryptoMedia

Markets

  • AI & Machine Learning
  • Automotive
  • Data Center
  • Edge
  • Government
  • IoT
  • Pay TV

Resources

  • Resource Library
  • Webinars
  • Inventions
  • Buying Guide
  • Contact

Copyright © 2023 Rambus.com. All Rights Reserved. Privacy Policy | Trademark & Guidelines

  • Facebook icon
  • Twitter icon
  • YouTuve icon
  • LinkedIn icon
  • Blog icon