SIS puts 256-bit graphics into P4 chip set

Taiwanese chip-set maker Silicon Integrated Systems Corp. (SIS) plans to integrate the 256-bit graphics core from its 315 graphics chip with its soon-to-be-launched 645 DDR chip set for the Pentium 4, said Alex Wu, the company's director of integrated products, in an interview here at the CeBIT Asia exhibition.

The integrated chip set, the 650, will be launched around November, Wu said. SIS opted for a two-chip configuration for the 650, as opposed to a single chip, in order to make it easier for motherboard manufacturers to design products based on the chip set.

The 650 will also offer support for PC333 DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory), which offers data throughput of around 2.7G bytes per second and is expected to enter volume production in September, Wu said. The fastest DDR memory currently available, PC266, offers data throughput of around 2.1G bytes per second.

Rival chip-set maker Via Technologies Inc. is also working on an integrated DDR chip set for the Pentium 4. The company expects to introduce its P4M266 chip set, which integrates S3 Graphics Inc.'s 128-bit Savage 4 graphics core with Via's upcoming P4X266 chip set. The P4M266 is slated for a November launch, according to Ted Lee, Via's vice president of sales and marketing.

Via is also working on a follow-up to the P4M266, expected to ship during the middle of next year, that will integrate a graphics core, code-named Zoetrope, currently under development. The Zoetrope core will offer a three-fold improvement in graphics performance over the P4M266, Lee said.

CeBIT Asia runs through Saturday.

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