How to determine CPU, FSB, memory controller base frequencies? Tags: CPUs Controller Memory Last response: December 29, 2009 6:49 PM in CPUs Share davidd31415 December 29, 2009 6:44:22 PM Is there a straight-froward way to determine a CPU or chipset/board base frequencies? DDR2 memory seems to always use a base frequency which is half of its effective frequency- is DDR3 like this as well? How about the CPU and the FSB frequencies? I rarely see base frequencies mentioned in specifications on vendor sites. Thanks. More about : determine cpu fsb memory controller base frequencies SuperFly03 December 29, 2009 6:49:00 PM CPU Speed is Base Clock x Multiplier FSB is Base Clock x 4 = Effective Rate DDR2/DDR3 is Base Clock x Memory:FSB Ratio x 2 Default base clock for Intel Core 2 Duo/Quads is 266MHz. Can't find your answer ? Ask ! Publish Related resources 1:1 Ratio how to pick the memory speed based on CPU/FSB? Forum How to determine my CPU FSB? Looking to buy new MOBO Forum How to determine whether a motherboard is an ATX or BTX board based on CPU Forum How to control speedstep/turbo and regular frequencies of the CPU Forum CPU FSB 1066 - Memory DDR2-1066. How to be perfect? Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !