RDRAM


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Related to RDRAM: FPM DRAM, EDO RAM, DDRRAM, DDR SDRAM

RDRAM

[¦är¦dē′ram]

RDRAM

RDRAM

(Rambus DRAM) Pronounced "r-d-ram." A dynamic RAM chip technology from Rambus, Inc., Los Altos, CA (www.rambus.com). Rambus licensed its memory designs to semiconductor companies, which manufactured the chips. Starting in the mid-1990s, RDRAM was used in video games and Windows PCs and competed with DDR SDRAM. Intel was an early champion of RDRAM but began to phase out support in 2001.

RDRAM came in 16-bit (single channel) and 32-bit (dual channel) modules with clock rates from 266 to 800 MHz. It was superseded by Rambus' XDR memory (see XDR).

Metal-Covered Modules
The Direct RDRAM chips used in computers were housed in Rambus Inline Memory Modules (RIMMs) with metal covers. RIMMs used different pin settings and were not interchangeable with DIMMs and SDRAM. See dynamic RAM, SLDRAM and memory modules.


RIMMs and DIMMs
RDRAM memory for computers was easily identifiable by its metal cover that served as a heat sink.



RIMMs and DIMMs
RDRAM memory for computers was easily identifiable by its metal cover that served as a heat sink.
References in periodicals archive ?
Only companies that make major investments now in new equipment, technology, and personnel will be able to effectively provide virtual warehousing of SDRAMs, DDR, SLDRAM, and RDRAM memory modules as they emerge between now and the year 2000.
Rambus has licensed its RDRAM and XDR memory interfaces to some of the world's largest chip and system providers.
Kingston's readiness to provide comprehensive RDRAM and RIMM module validation services is a key milestone in our Rambus Validation program," explained Subodh Toprani, vice-president and general manager, Industry Enabling Division, Rambus Inc.
Direct RDRAM technology is pushing many other technologies in the platform," said Peter MacWilliams, Intel fellow and director of platform architecture for the Intel Architecture Labs.
Today's 128-Mb RDRAM announcement reinforces NEC's plans to continue its leadership role within the Rambus camp.
We believe Toshiba will be a key vendor for the beginning phase of the Direct RDRAM ramp in 1999.
The SiS chipset featuring four-channel RDRAM and Samsung high-speed RDRAM modules provides PC OEMs and system integrators the competitive advantage for building top-performing PCs," said Tom Quinn, vice president of marketing, Samsung Semiconductor Inc.
Among the eleven worldwide suppliers of RDRAM, LGS is the first to supply commercial samples of the 64M concurrent RDRAM -- the industry's new standard for high-end graphics realization.
We are confident that users will find the four-channel RDRAM memory to deliver unprecedented performance.
5 megabit RDRAM we have jointly developed as well as offering Rambus Interface ASIC capability to our system and fabless semiconductor customer base.
High-End Computer and Network System Makers That Use RDRAM Technology