Taipei, Dec. 8th, 2004 -- Silicon Integrated Systems Corp (SiS), a leading supplier of core logic chipsets, announced today that its SiS656 Northbridge chipset has passed all PCI-SIG's PCI Express compatibility tests, and has completed co-validation for DDR2-667, DDR2-533 and DDR2-400 memory from Elpida, Micron and Samsung. In the future, SiS will be closely cooperating with these three major memory manufacturers.

The SiS656 Northbridge chipset supports both DDR2-400MHz and DDR2-533MHz, and is the fastest core logic chipset on the market to support DDR2-667 memory. Daniel Chen, President and CEO of SiS said, "DDR2 will inevitably replace DDR as the mainstream memory specification standard, and SiS' R&D team has kept abreast of these latest developments – we have introduced advanced high-speed memory interfaces to complete the co-validation of SiS656 Northbridge chipset with three major memory manufacturers – Elpida, Micron and Samsung. This achievement shows that technology development at SiS is stable and mature."

Always in rhythm with "the pulse of technology," SiS continues to welcome challenges in its determination to be the leading chip designer. The SiS656 Northbridge chip's certification by PCI-SIG is but one example. Ryoichi Yanai, President of Elpida Memory (Taiwan) Co., Ltd. said, " DDR2 accomplish the various new features, such as high transfer rate (400/533/667Mbps), low power supply (1.8V), advanced package style (FBGA) and ODT (On Die Termination) to achieving high speed, low power consumption and high density for extreme computing system.,"

The SiS656 chipset is the ideal high-performance and high efficiency match for DDR2-667 memory, which creates an unequaled and perfect combination that surpasses new generation technology platforms. "We are extremely pleased with the performance results of all Micron DDR2 SDRAM modules (PC2-3200, PC2-4200, and PC2-5300) in SiS656 platform," said Brett Williams, Micron's DRAM PC Segment Marketing Manager. "Our DDR2 modules utilize our DDR2-400, DDR2-533, and DDR2-667 components to provide high-performance bandwidth levels exceeding 5.3 gigabytes per second. It is exciting to be amongst the first DRAM suppliers to achieve this milestone as DDR2 adoption becomes more widespread in the industry." In the future, Micron will be working closely with SiS to satisfy increasing consumer demands.

Jun-Young Jeon, VP of product planning & application engineering team of memory division in Samsung Electronics Co., Ltd, said, " DDR2-400 and 533 are in mass production now, and with finishing this DDR2-667 co-validation, we believe that the memory market will rapidly adopt DDR2-667." High speed DDR2 memory's superiority lies in its low power consumption, is high efficiency and high speeds. The SiS656 Northbridge chipset suitably responds to the high-speed data transmission needs of new generation PCI Express specifications. The SiS656 fully improves the efficiency of peripheral devices such as video cards, network interface cards, SATA hard disks and video capture cards, and shows SiS' determination to stand out among the competition.

SiS' new generation DDR2-standard products are recognized for their integrity and precision. The SiS656 chipset supports Intel Pentium®4 platform with dual channel DDR400 memory specifications, processor, and a data bandwidth of 6.4 GB/s between the Northbridge chip and memory module. Furthermore, the SiS656 also supports advanced dual channel DDR2-667/533/400 memory with a total of 4 DIMM slots and data transmission speeds of up to 10.6 BG/s -- a higher memory bandwidth than DDR. In addition, the SiS656 offers 16 PCI Express lanes and two-way transmission rates of up to 8 GB/sec for video cards. The SiS656 gives you full support whether you are using a 3D application program or other multimedia applications -- SiS' Advanced HyperStreaming™ Technology allows your system to maintain ample resources in a multiple operations environment.