PC2 5300 DDR2 667 Computer RAM
Every computer, mobile phone or tablet needs RAM. Random Access Memory is the working space of your computer. In simple terms, it feeds the processor. The more RAM you have, the more programs you can have open at the same time. DDR2 RAM is the second generation of double data rate memory, and provides a marked performance improvement over previous generations.Reading RAM
If you know how to read it, the term PC2 5300 DDR2 667 computer RAM tells you quite a lot. Both PC2 and DDR2 tell you that it is second-generation DDR memory, transmitting two bits of data on the rising and falling edge of each tick of the memory clock. This gives a bandwidth of 5,300 million transactions per second, at an effective clock speed of 667 MHz.Desktops vs. Laptops
While both desktop and laptop computers can use DDR2 memory, it is not interchangeable. Desktops use DIMM memory, while laptops use the smaller SODIMM format. Each DIMM module is approximately 133 millimetres long, while SODIMMs are only 67 millimetres long. They work in exactly the same fashion, but the different sizes mean that the two are not interchangeable.Memory and Speed
DDR RAM is available in several different speeds. In addition to the basic PC2 5300 RAM you can also get PC2 6400 DDR2 800 computer RAM, which offers a higher transfer rate. Newer machines use DDR3 RAM such as PC3 8500 DDR3 1066 computer RAM. This RAM is almost twice as fast as PC2 5300, but because it is DDR3, it is not compatible.Choosing RAM
The best amount of computer memory to have is the most the computer system supports. While it does not make the processor any faster, it makes the computer feel faster and more responsive because you have to spend less time waiting for data to load from the hard drive.