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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.

MemoryStandardMemory ClockI/O ClockEffective Memory ClockBandwidth per ChannelDual Channel Bandwidth
DDR2-667PC2-5300166 MHz333 MHz667 MHz5.3 GB/s10.6 GB/s
DDR2-800PC2-6400200 MHz400 MHz800 MHz6.4 GB/s12.8 GB/s
DDR3-800PC3-6400100 MHz400 MHz800 MHz6.4 GB/s12.8 GB/s
DDR3-1066PC3-8500133 MHz533 MHz1066 MHz8.5 GB/s17.0 GB/s
DDR3-1333PC3-10600166 MHz667 MHz1333 MHz10.6 GB/s21.2 GB/s
DDR3-1600PC3-12800200 MHz800 MHz1600 MHz12.8 GB/s25.6 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.