Silicon Integrated Systems Corp. (SiS), a leading supplier of core logic
chipsets, today announced the launch of its newest northbridge for the Intel
Pentium® 4 CPU, the SiS649. The SiS649 is SiS’ latest chipset designed for the
latest DDR and DDR2 memory standards and PCIe x16, making it an ideal choice for
vendors who need a high performance next-generation platform that also offers
The SiS649 was specifically designed for the latest applications that require
high bandwidth. Utilizing SiS’ HyperStreaming™ technology, the SiS649 offers
more advanced data processing and maintains the best resource utilization across
multiple operating environments. In addition, the SiS649 features SiS MuTIOL® 1G
technology, for the smoothest data transfer between South and North Bridges.
Memory-intensive digital multimedia applications will also benefit from the
support for advanced DDR2 offered with the SiS649 chipset. 2 DIMMS are
supported, with a huge 1 GB per DIMM of RAM, for a total of 2GB of system memory
supported. The SiS649 employs an extremely flexible memory architecture, where
vendors can choose either to employ DDR or DDR2 in the design of the
motherboard, giving them added flexibility for changing market conditions.
Combined with SiS’ latest South Bridge Chipset SiS965, the SiS649 offers
vendors a formidable combination that is ready for the next generation of
peripheral devices thanks to PCIe support. The SiS965 supports PCIe x1, gigabit
LAN, 8 USB 2.0 ports, AC 97 7.1 channel sound, 4 SATA (supporting hot plug
functionality) and 4 ATA. The SiS965 also supports Multiple RAID disk array
modes in RAID 0/1.
"A single channel DDR and DDR2 solution gives vendors a much needed
mainstream option," said Daniel Chen, President and CEO of SiS. "With the
SiS649, SiS is proud to once again give vendors a world-first technology with
support for single-channel DDR2."