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