Rambus, Kingston to demo threaded DDR3 RAM

Aside from the odd nugget of news about its lawsuits against memory makers, we don't hear Rambus' name too much. The company's latest announcement is a little unusual, however, because it pertains neither to lawsuits nor the memory maker's proprietary XDR DRAM tech.

Rather, Rambus has partnered with Kingston to develop a technology that purportedly increases the bandwidth of conventional DDR3 SDRAM modules. Here's the skinny, in the company's words:

Threaded memory module technology is implemented utilizing industry-standard DDR3 devices and a conventional module infrastructure. It is capable of providing greater power efficiency for computing systems by partitioning modules into multiple independent channels that share a common command/address port. Threaded modules can support 64-byte [512-bit] memory transfers at full bus utilization, resulting in efficiency gains of up to 50 percent when compared to current DDR3 memory modules. In addition, DRAMs in threaded modules are activated half as often as in conventional modules, resulting in a 20 percent reduction in overall module power.

For reference, conventional DIMMs have 64-bit data paths, and dual-channel memory controllers double that for a total of 128 bits. 512 bits from a single channel would boost maximum theoretical bandwidth quite a bit, although Rambus does quote a data throughput improvement of only up to 50%.

Rambus and Kingston will be showing a "static demonstration" of the new technology at the Intel Developer Forum in San Francisco this week.

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