原创 The difference between RDIMM/UDIMM/SO-DIMM/FBDIMM and LRDIMM.

There are many memory modules ,such as RDIMM,UDIMM,SO-DIMM,FBDIMM and LRDIMM. What is the difference?

DIMM: Dual In-line Memory Module. 64bits

SIMM: Single In-line Memory Module.32bits

UDIMM: Unbuffered DIMMs

RDIMM: buffered/registered DIMM: only registered the control signals.

LRDIMM:Lord Reduced DIMM . buffered the DQ/DQS together with the control signals : command address