Liquid3D
12-26-2003, 06:10 AM
Silicon Stratedgies announced that Toshiba is manufacutring 512Mbit DRAM for Rambus Inc's Yellowstone or XDR DRAM, and will begin production in 2005, instead of 2006. I've heard there are several, manufacturers working on XDR, but I didn't know the full potential of it's architecture. Here (http://www.siliconstrategies.com/article/showArticle.jhtml?articleId=17100168) is a quote from the most recent article;
The DRAM has a data transfer speed of 3.2-GHz (sic) with cycle times of 40 or 50 nanoseconds and latencies of 27 or 35-ns
Unfortunately we won't be seeing this memory until 2005, 2006 and they have not specified if the memory will be available as PC RAM. They did mention Broadband, Network Servers, and Graphics applications. The memory runs 8-times faster the fastest JEDEC approved memory, and in a July article Rambus stated they will double this speed. Here's a quote from that (http://www.siliconstrategies.com/article/showArticle.jhtml?articleID=12800147) article;
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.
The DRAM has a data transfer speed of 3.2-GHz (sic) with cycle times of 40 or 50 nanoseconds and latencies of 27 or 35-ns
Unfortunately we won't be seeing this memory until 2005, 2006 and they have not specified if the memory will be available as PC RAM. They did mention Broadband, Network Servers, and Graphics applications. The memory runs 8-times faster the fastest JEDEC approved memory, and in a July article Rambus stated they will double this speed. Here's a quote from that (http://www.siliconstrategies.com/article/showArticle.jhtml?articleID=12800147) article;
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.