What is the differenc with memory PC 2 5300 pc5400 pc5000?

Answer 1

PC2 refers to DDR2 SDRAM, which is a second generation of DDR SDRAM (Double Data Rate, Synchronous Dynamic Random Access Memory). It features many technical improvements over the older DDR memory. Most notably is the doubled clock speed over DDR at the disadvantage of increased latencies.

The number after PC2 refers to the maximum theoretical speed (in megabytes per second) that the memory can transfer. For example, PC2-5300 memory can theoretically transfer data at 5,300 MB/s, or 5.3 GB/s.

DDR2 is not compatible with motherboards that use DDR or DDR3. When purchasing memory for a computer, check your computer manual for the correct type of memory for your computer. If you are not confident that you can choose the correct type of memory for your computer, have a professional service it.