Learn more about SiS chipset roadmap

on VR Zone a lot of new information has been posted about the SiS roadmap. Most notably, the company is moving away from its single-chip strategy. The new Socket370 and Socket A chipsets will use a true southbridge. The first version is the SiS 961, which has features such as six PCI slots, ATA-100 and six USB connectors. Furthermore, fast ethernet, audio and modem will be baked into the chip. Next year the southbridge will be equipped with USB 2.0 support. The connection between north and south will be made by PepLink. This bus was previously called TransZIP and is said to be derived from HyperTransport, but that turns out not to be true. The 16 bit bidirectional bus delivers 533MB/s of bandwidth at a speed of 266MHz, twice as much as VIA’s V-Link system.

On the video side, we can first expect the SiS 315, which should be about the same in performance as the GeForce2 MX400, but in price around the level of the MX200. It will be succeeded by the SiS 330 later this year, but its specifications have not yet been determined. Below you can see the details of the different chipsets. Especially interesting is SiS 645, which, like VIA P4X266, will serve DDR’s Pentium 4 platform in the third quarter:

Intel Chipsets

  • SiS640T – Discrete chipset supporting Intel PIII, Celeron and Tualatin processors. 133Mhz FSB, up to 3 DDR/SDR, 1.5GB Memory, integrated graphics SiS315. Connected to SiS961 Southbridge using PepLink technology. Due in Q2 2001.
  • SiS645 – Discrete chipset supporting Northwood CPUs. 400Mhz FSB, up to 3 DDR/SDR, 1.5GB Memory, integrated graphics SiS315. Connected to SiS961 Southbridge using PepLink technology. Due in Q3 2001.
  • SiS650 – Same as SiS645 but equipped with the integrated SiS330 graphics core. Due in Q4 2001.

AMD Chipsets

  • SiS740 – Discrete chipset supporting Athlon 4 CPUs. 133Mhz FSB, up to 3 DDR/SDR, 1.5GB Memory, integrated graphics SiS315. Connected to SiS961 Southbridge using PepLink technology. Due in Q2 2001.
  • SiS745 – Same SiS740 but equipped without integrated SiS330 graphics core. Due in Q3 2001.

    SiS750 – Same SiS740 but equipped with the integrated SiS330 graphics core. Due in Q4 2001.
  • SiS7xx – Chipset for AMD Hammer processor featuring AMD HyperTransport technology. Due in 2002.