Intel Intros 3-Series Chipsets with FSB1333 and DDR3

DDR3 Features

Source: Microsoft via Micron.

The two graphs include very much all the important technical data about DDR3 memory. I already mentioned the reduced voltage levels and the doubled densities (there will be no DDR3 DIMMs at less than 512 MB per module). The memory packages are slightly larger and come with a higher connector count, but this shouldn't have much influence on modules.

Source: Microsoft via Micron.

DDR3 Speeds

The following table lists all DDR3 speeds that will be available until 2008.

Memory Standard Memory Clock I/O Clock Effective Memory Clock Bandwidth per Channel Dual Channel Bandwidth
DDR2-667 PC2-5300 166 MHz 333 MHz 667 MHz 5.3 GB/s 10.6 GB/s
DDR2-800 PC2-6400 200 MHz 400 MHz 800 MHz 6.4 GB/s 12.8 GB/s
DDR3-800 PC3-6400 100 MHz 400 MHz 800 MHz 6.4 GB/s 12.8 GB/s
DDR3-1066 PC3-8500 133 MHz 533 MHz 1066 MHz 8.5 GB/s 17.0 GB/s
DDR3-1333 PC3-10600 166 MHz 667 MHz 1333 MHz 10.6 GB/s 21.2 GB/s
DDR3-1600 PC3-12800 200 MHz 800 MHz 1600 MHz 12.8 GB/s 25.6 GB/s

Intel expects DDR3 memory to scale all the way to DDR3-2133, which would be PC3-17000 at 266 MHz clock speed and 1066 MHz I/O clock. However, we're not sure at this time whether this will remain a niche for enthusiast products.

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