Before we start going into the specifics, you need to know that DDR, DDR2, and DDR3 are based on SDRAM (Synchronous Dynamic Random Access Memory) design, meaning that they use a clock signal to synchronize things. DDR stands for Double Data Rate. Memories from this category transfer two data chunks per clock cycle.Aug 27, 2009 read more
Best Answer: 8 Giga byte is the memory of your (used for thinking and other activities) computer, 1000GB or 1 Terra Byte is your storage space of your Hard drive. read more
DDR3 is a type of SDRAM that is used for system memory. It is available in both DIMM and SO-DIMM form factors. DDR3 RAM is similar to DDR2 RAM, but uses roughly 30% less power and can transfer data twice as fast. read more