Micron Technology is championing faster memory for PCs.
The company has begun sampling 400MHz double data rate SDRAM to chipset manufacturer Silicon Integrated Systems. SiS will test the memory with its SiS648, a new chipset for Intel's Pentium 4 processor. A chipset is a group of chips that support the central processor in a PC.
Dubbed DDR400, the new memory boosts speed 20 percent over its next-fastest sibling, the 333MHz DDR333. It increases peak memory bandwidth from DDR333's 2.7GB per second to 3.2GB per second. The most popular version of DDR SDRAM right now, however, is DDR266, which runs at 266MHz and offers peak bandwidth of 2.1GB per second.
Thanks to higher bandwidth and a faster clock speed, Micron says, DDR400 will be able to keep up with faster, more advanced PC processors and graphics chips that will hit the market later this year. The new memory rivals Rambus' latest 1066MHz DRAM chips, which offer peak bandwidth of 4.2GB per second. These are expected to hit the market this summer.
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