Silicon Integrated Systems Corp., a chipset designer from Taiwan, and Intel Corp., the world’s largest supplier of x86 microprocessors, have signed agreement under which SiS will be able to develop, manufacture and sell core-logic sets that support Intel’s forthcoming microprocessors.

“SiS will be offering the next generation products to support high-speed FSB 1333MHz for the Intel Core 2 Quad processors. These new chipsets will strengthen SiS product portfolios with another high-end option for consumers seeking extreme performance and innovative design,”said Daniel Chen, the chief executive and president of SiS.

So far it is uncertain which of SiS’ chipsets will be the first to support 1333MHz processor system bus (PSB). Currently the company’s roadmap lists at least two chipsets with yet-to-be decided PSB speed-bin, which may indicate that those products will support processors with the new bus. These chipsets are SiS 673 FX core-logic set that supports DirectX 10 integrated graphics core, DDR2 and DDR3 memory as well as some other advanced features as well as SiS 665 that also supports DDR2 and DDR3 and is positioned to server performance-demanding market.

Terms of the deal between Intel and SiS were not disclosed. Typically such licensing involves one-time payment as well as royalties from every chipset sold.

Another Taiwan-based developer of core-logic sets, Via Technologies, whose licensing agreement with Intel expires in April, has yet to ink the deal with the chip giant.