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Even faster RAM

PC333 memory production to begin in September

Memory chip makers are expected to begin mass production of PC333 DDR SDRAM (double data rate synchronous dynamic random access memory) in September, said Alex Wu, director of integrated products at chipset maker SIS, at the CeBit Asia exhibition.

The announcement that PC333 will soon enter volume production comes as SIS readies the launch of its 645 DDR chipset for Intel's Pentium 4 processor. The 645 is expected to be the first DDR chipset which will support PC333 memory for the Pentium 4.

Rival chipset maker Via Technologies will also imminently launch of a DDR chipset for the Pentium 4, the Apollo P4X266, but its chipset does not currently support PC333.

Intel has plans to introduce a version of its 845 chipset that supports DDR in early 2002.

Offering throughput of nearly 2.7GBps (gigabytes per second), PC333 DDR memory is substantially faster than PC266 DDR memory, which has a throughput of around 2.1GBps. By comparison, RDRAM (Rambus DRAM) offers throughput of around 1.6GBps.


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