<page_title> DDR3 SDRAM </page_title> <section_title> JEDEC standard modules </section_title> <table> <cell> DDR3-800D DDR3-800E <col_header> Standard name </col_header> <col_header>  </col_header> </cell> <cell> 400 <col_header> I/O bus clock </col_header> <col_header> (MHz) </col_header> </cell> <cell> 800 <col_header> Data rate </col_header> <col_header> (MT/s) </col_header> </cell> </table>
DDR3 modules can transfer data at a rate of 800 MT/s, and 400 MHz I/O clock.