It is the quickest form of computer memory currently on the market and is a variant of RAM (Rambus Dynamic Random Access Memory). Standard RDRAM can accelerate data transmission to over 1 GHz, while typical SDRAM can do so up to 133 MHz. RDRAM can be used as system memory by some systems, but because it is so rapid, most boards cannot completely take advantage of the pace. As a result, RDRAM is frequently used for system memory, cache memory (positioned on the Processor), and video memory on graphics accelerator devices in high-performance computers and servers.

Even quicker data transmission speeds are possible with Direct Rambus (DRDRAM), an advancement of RDRAM. DRDRAM can perform eight processes simultaneously and transmit data at rates of 1.6 GHz because it employs a 16-bit network as opposed to DRAM's 8-bit bus. Wow, that's quick.