Advances in Radio Science www.adv-radio-sci.net 1684-9965 1684-9973 1 Kleinheubacher Berichte 2002 2003 10.5194/ars-1-265-2003 http://www.adv-radio-sci.net/1/265/2003/ http://www.adv-radio-sci.net/1/265/2003/ars-1-265-2003.html http://www.adv-radio-sci.net/1/265/2003/ars-1-265-2003.pdf 265 271 2003-05-05 A Comparison of current SDRAM types: SDR, DDR, and RDRAM B. Klehn M. Brox Infineon Technologies AG, Munich, Germany The ever increasing demand for bandwidth of computer-systems lead to several standards of SDRAMs. This article compares SDR, DDRI, DDRII, and RDRAM systems. Besides the overall basic innovations, differences will be discussed. Topics like architecture, interfaces, and modules are described.