TAIPEI, Taiwan -- Taiwan's Silicon Integrated Systems Corp. (SiS) here today launched the world's first third-party PC chip set that supports Rambus Inc.'s high-speed memory interface.
Supporting 800- and 1066-MHz RDRAM devices, the SiSR658 chip set is geared for high-end computers and workstations. The product also offers 1.5 to 2 times more data transmission bandwidth than competing solutions, based on double-data-rate SDRAM, according to the Taipei-based company.
SiS becomes the first third-party, core-logic supplier to support RDRAM. Other chip set houses, including Acer Laboratories, ATI, Nvidia, and Via Technologies, do not support RDRAM technology.
Intel has supported Rambus with its chip sets for some time, but the microprocessor giant also endorses the competing SDRAM and DDR SDRAM technologies as well.
Analysts noted that Intel is pushing its SDRAM- and DDR SDRAM-enabled chip sets for mainstream PCs, while its RDRAM offering are gearing for the high-end niche segments.
The SiSR658 chipset meets the needs of users who have a high demand for a multitasking and performance, said Alex Wu, senior director of the SiS' Integrated Products Division.
"Systems configured with RDRAM memory deliver the highest performance," Wu said. "This performance advantage will become even clearer as processor frequency scale to over 3-GHz in the coming year," he said.
The SiSR658 is the first chip set in the world that supports dual RDRAM at 1066-MHz. The SiSR658 flexible memory interface supports all device configurations, including single-channel module systems, and up to 4-GB memory capacity.
Furthermore, with its proprietary "MuTIOL" technology, the SiSR658 can easily achieve up to 1-gigabit-per-second northbridge-to-southbridge front side bus bandwidth transmission.
The SiSR658 supports 1066/800-MHz RDRAM and AGP8X graphics. In addition, the SiSR658 is equipped with multimedia functions, including 5.1 ChannelAC'97 2.2 Audio, 10/100-Mbit Ethernet, Home PNA2.0, and Dual ATA133/100/66 IDE Channels. The SiSR658 supports six PCI slots and six USB 2.0/1.1 ports.
No prices or delivery were given, however.