XDR2 DRAM

 
The XDR2 memory architecture is the world's fastest memory system solution capable of providing more than twice the peak bandwidth per device when compared to a GDDR5-based system. Further, the XDR 2 memory architecture delivers this performance at 30% lower power than GDDR5 at equivalent bandwidth.

Designed for scalability, power efficiency and manufacturability, the XDR 2 architecture is a complete memory solution ideally suited for high-performance gaming, graphics and multi-core compute applications. Each XDR 2 DRAM can deliver up to 80GB/s of peak bandwidth from a single, 4-byte-wide, 20Gbps XDR 2 DRAM device. With this capability, systems can achieve memory bandwidth of over 500GB/s on a single SoC.

Capable of data rates up to 20Gbps, the XDR 2 architecture is part of the award-winning family of XDR products. With backwards compatibility to XDR DRAM and single-ended industry-standard memories, the XDR 2 architecture is part of a continuously compatible roadmap, offering a path for both performance upgrades and system cost reductions.

The XDR 2 memory architecture is the first to incorporate innovations from Rambus' Terabyte Bandwidth Initiative along with other key Rambus innovations including:

1. 32X date rates enables high data rates (up to 20Gbps) at lower system clock and on-chip bus interface speeds.
2. Improves signal integrity, reduces power and enables the highest memory performance available.
3. Enables high data rates, simplifies layout and eliminates trace length matching.
4. Flex link C/A reduces system costs and controller pin-count while providing scalable capacity and flexible access granularity.
5. Flex mode interface technology enables support of both differential and single-ended memories in a single SoC package design with no extra pins.
6. Micro-threading increases transfer efficiency on micro-threaded workloads while reducing power consumption.