Just over a year ago, Micron announced that it had finished work on a 1Gbit (or 128MB) DDR3 memory chip. The chip was based on 78nm process technology, was rated to run at speeds up to 1600MHz, and the memory maker said it could be squeezed into 2GB DDR3 modules.
Today, Micron is back, this time with a 2Gbit (256MB) DDR3 chip it says is the first of its kind and the "highest density DDR3 component available on the market." This new chip packs twice the capacity of its predecessor on the same 78nm process technology. 16 of the new 2Gbit chips can be lined up on a desktop or notebook DDR3 module for a total per-module capacity of 4GB, and for servers, Micron says its new baby will enable the production of 8-16GB DDR3 modules.
Performance-wise, though, the 2Gbit chip is rated for 1333Mbps. That means an actual clock speed of 667MHz and a DDR clock speed of 1333MHz, which isn't as speedy as the 1Gbit part's 1600MHz. That said, as we saw in our review of Intel's P35 Express chipset, 1333MHz DDR3 memory is still more than fast enough for a high-end system.
Micron says it's currently sampling its new 2Gbit chips. The company expects their first commercial applications to roll out during the first quarter of 2008.