Rambus DRAM

Rambus DRAM

(storage)
(RDRAM) A high bandwidth DRAM, designed by Rambus, Inc. of Mountain View, CA.

RDRAM is used mainly for video accelerators, and also in the Ultra 64 from Nintendo. It offers sustained transfer rates of around 1000 Mbps, compared to 200 Mbps for ordinary DRAM. Although it cannot be used as a direct replacement for existing memory, it is likely that it will replace DRAM and SDRAM as the main memory system in personal computers as the bus speeds required by these machines increase. SDRAM can operate up to around 100MHz, but RDRAM has been demonstrated by the manufacturers running at 600MHz.

The memory is also only 8 or 9 bits wide, so the bandwidth would increase enormously if it were used in parallel to give 32 or 64-bit memory.

RDRAM Installation.
References in periodicals archive ?
(71) The court found that "Rambus did not propose or promote any technology and was not even permitted to present its proprietary Rambus DRAM ...
Intel now has chipsets that support SDRAM, DDR DRAM and Rambus DRAM, or RDRAM.
South Korea's Samsung Electronics Co Ltd has developed three new Rambus DRAM versions - a multi-channel Rambus DRAM module for servers and high-performance PCs, a high-capacity module for servers and a Rambus DRAM for networks.
The PowerMate CT desktop computer is the first to integrate the Intel 820 chipset and harness the performance advantages of RAMBUS DRAM (RDRAM) technology, operating at 800MHz.
Compaq is not disclosing the value of deal; or exactly what type of chips Micron is supplying but sources say that DRAM, synchronous DRAM - including the PC133 and double data rate types - Rambus DRAM and Flash memory will all be on the menu.
Samsung expects to begin mass production of the Rambus DRAM in 2H'2001, targeting it at the mid-priced and low-end PC market.
VIA has already gathered support for its chipset - the first to support the PC133 memory specification - in the wake of Intel's debacle with its 820 Camino Rambus DRAM chipset.
Samsung Electronics says that it has become the first company to complete development of a 288Mb Direct Rambus DRAM (RDRAM) component and a 576Mb Rambus In-line Memory Module (RIMM module).
The 820 - when it eventually arrives - will be the first Intel chipset to use the much-hyped Rambus DRAM
A RIMM is a module containing one or several Rambus DRAM chips on a small circuit board with pins that connect to the PC motherboard.
TELECOMWORLDWIRE--(C) 1994-8 M2 COMMUNICATIONS LTD Samsung Electronics Co Ltd says that it is the first to have completed the development of a 144Mb Rambus DRAM Direct component and a 144MB Rambus in-line memory module.
New Research shows that Intel Corp's preferred next generation Rambus DRAM memory chips are 25% slower at running applications in a 'real world' environment than current PC100 synchronous DRAM chips.