Feeling a little confused? Not sure what the differences are between SODIMM, UDIMM, RDIMM and CUDIMM memory?
Now where do I begin .. ok let’s start off with the word DIMM. DIMM stands for Dual In-Line Memory Module, and these have been around since the early 90’s and are used in most computer systems today. There are any variants of DIMMs … such as the ones we’ve mentioned.
So, let’s begin with SODIMM, which some people pronounce SO-DIMM. It stands for Small Outline Dual In-Line Memory Module. They’re much smaller than traditional DIMM memory and are usually used in laptops and compact mini PCs.
Next we have UDIMM, which are unbuffered DIMMs. These are the most common type of RAM used in modern PCs. One of the main advantages of unbuffered DIMMs, is that the lack of a buffer reduces latency, leading to faster performance.
Now RDIMMs are Registered DIMMs. And these are primarily used in workstations and servers for higher reliability and stability. RDIMMs include a register, or buffer, and support ECC (Error-Correcting Code), which helps to detect and correct data corruption as well, for improved reliability.
And finally, we move on to latest variation of DIMMs, the CUDIMM, which are basically Clocked Unbuffered DIMMs. Now these memory modules are designed to improve the signal integrity of the memory, by including a clock driver (CKD) on the actual DIMM.
This allows for a much high clock speed over normal UDIMMs, and are perfect for the latest high-end enthusiasts PCs.
Well, I hope I’ve explained clearly (to the best of my knowledge) the difference between the different types of memory, and I hope this has cleared up some of the confusion. For more tips like this … be sure to follow Funky Kit!
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