Rambus, along with Toshiba and Elpida Memory rolled out the technology, now called XDR DRAM. Running at 3.2-GHz, XDR DRAM offers eight times the bandwidth of today's PC memory, according to the Los Altos-based company.

Toshiba and Elpida expect to begin shipping XDR DRAM in 2004, ramping to volume production in 2005.

The U.S. company has been leaking details about Yellowstone for some time and has licensed the technology to Elpida, Sony, Toshiba, among others. Recently, Sony Corp. and Sony Computer Entertainment Inc. have licensed the XDR memory interface for utilization in a future broadband product, dubbed "Cell."

The XDR DRAM family is geared for mainstream memory in consumer, graphics, and networking applications. Initially XDR DRAM will be offered at 3.2-GHz with a roadmap to 6.4-GHz and beyond, enabling memory system bandwidths up to 100-gigabytes-per-second of bandwidth.

With densities ranging from 256-megabit to 8-gigabit, XDR memory's matrix topology allows point-to-point differential data interconnects to scale to multi-GHz speeds, while the bussed address and command signals allow a scalable range of memory system capacity supporting from one to 36 DRAM devices.

By: Docmemory
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