SiS Launches R659 Four Channel RDRAM Chipset

Chipset offers 50 percent higher memory bandwidth versus competition

RAMBUS DEVELOPER FORUM, TAIPEI,TAIWAN - November 06, 2003 - Silicon Integrated Systems Corp. (SiS), a leading provider of core logic chips, Samsung Electronics Co., Ltd., the world leader in advanced semiconductor memory technology, and Rambus Inc. (Nasdaq:RMBS), a leading developer of chip-to-chip interface products and services, announced the availability of the SiSR659 chipset, targeted at high-performance computing and multimedia gaming markets. In addition to providing the highest memory performance, the SiSR659 chipset is also the first PC chipset to incorporate a dynamic look-ahead buffer and adaptive page management to significantly improve memory access speed.

"The SiSR659 chipset combines unprecedented performance and features for desktop PCs," said Michael Chen, president and CEO of SiS. "SiS and Rambus continue to develop innovative RDRAM chipsets that will enhance the computing experience."

For performance across a wide range of applications, the SiSR659 chipset supports Pentium® 4 processors with 800MHz front side bus, and features a low-latency architecture with Advanced HyperStreaming™ Engine (AHSE) technology.

"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.

Available for mass production, the SiSR659 chipset drives four channels of 1200MHz RDRAM memory resulting in 9.6GByte/sec of memory bandwidth.

"With the four-channel architecture, RDRAM memory reclaims the lead as the top-performing solution for PC computing, bringing 50 percent higher bandwidth than dual-channel DDR memory," said Laura Stark, vice president of the Memory Interface Division at Rambus. "The SiSR659 chipset is another example of the commitment to innovation that SiS, Samsung and Rambus have made to advance PC computing." The SiSR659 chipset achieves unmatched performance using standard commodity RIMM modules available today and already supported by the industry. This latest RDRAM solution pairs the SiSR659 with the SiS964 south bridge, which integrates USB 2.0 with up to eight ports and Serial ATA features.

About Silicon Integrated Systems Corp. (SiS)
Silicon Integrated Systems Corp. (SiS) is a worldwide leader in the development and marketing of leading-edge logic products, including core logic, multimedia, communication and information appliances. The company was founded in 1987 in the Hsin-Chu Science-based Industrial Park in Taiwan and has been listed on the Taiwan Stock Exchange (TSE2363) since August 1997. For more information, please visit www.sis.com.

About Rambus Inc.
Rambus is a leading provider of chip-to-chip interface products and services. The company's breakthrough technology and engineering expertise have helped leading chip and system companies to solve their challenging interface problems and bring industry-leading products to market. Rambus' interface solutions can be found in hundreds of computing, consumer electronic and networking products. Additional information is available at www.rambus.com.

About Samsung
Samsung Electronics Co., Ltd. is a global leader in semiconductor, telecommunication, and digital convergence technology. Samsung Electronics employs approximately 64,000 people in 89 offices in 47 countries. Samsung Electronics is the world's leading producer of advanced semiconductors, TFT-LCDs, CDMA mobile phones, monitors and VCRs. Samsung Electronics consists of four main business units: Device Solution Network, Digital Media Network, Telecommunication Network and Digital Appliance Network Businesses. The Device Solution Network specializes in semiconductor and TFT LCD display products for industrial, mobile and advanced computing applications, offering a full line of key solutions of DRAMs, SRAMs, Display Driver ICs, Smart Card ICs, TFT LCD panels and Flash memories. The Device Solution Network operates 11 overseas sales subsidiaries and mass production facilities to maximize on hand customer support. For more information, visit our website at http://www.samsungsemi.com

Samsung Semiconductor Inc., a wholly owned U.S. subsidiary of Samsung Electronics Co., Ltd., is located in San Jose, Calif. More information can be found at http//www.usa.samsungsemi.com/.