Four standard operating frequencies for the DDR2 SDRAM Memory Module specification were developed to provide the
use with the most suitable option: PC2-3200, PC2-4200, PC2-5300,
and PC2-6400.
PC2-3200 memory module configurations utilize DDR2-400
components to achieve the highest performance, with a peak
bandwidth of 3.2GB/s when used in systems operating on 200MHz
memory clock frequency.
PC2-4200 memory module configurations utilize DDR2-533
components to achieve the highest performance, with a peak
bandwidth of 4.2GB/s when used in systems operating on 266MHz
memory clock frequency.
PC2-5300 memory module configurations utilize DDR2-667
components to achieve the highest performance, with a peak
bandwidth of 5.3GB/s when used in systems operating on 333MHz
memory clock frequency.
PC2-6400 memory module configurations utilize DDR2-800
components to achieve the highest performance, with a peak
bandwidth of 6.4GB/s when used in systems operating on 400MHz
memory clock frequency.