can anyone tell,or even explain to me the difference of DDRAM and SDRAM, and DDR2?

Answer 1

DDRAM - Double Datarate Ram
SDRAM - Single Datarate Ram
DD2 - is an improved performance DDRAM
None are compatible with eachother.
Not all systemboards are compatible with all 3.
Check your manual to see which you need and follow it.

Answer 2

DDR2-SDRAM is high-performance main memory. Over its predecessor, DDR-SDRAM, DDR2-SDRAM offers greater bandwidth and density in a smaller package along with a reduction in power consumption. In addition DDR2-SDRAM offers new features and functions that enable higher a clock rate and data rate operations of 400 MHz, 533 MHz, 667 MHz, and above. DDR2 transfers 64 bits of data twice every clock cycle. DDR2-SDRAM memory is not compatible with current DDR-SDRAM memory slots.


Short for Double Data Rate-Synchronous DRAM, a type of SDRAM that supports data transfers on both edges of each clock cycle (the rising and falling edges), effectively doubling the memory chip's data throughput. DDR-SDRAM also consumes less power, which makes it well-suited to notebook computers. DDR-SDRAM is also called SDRAM II. and DDRAM.

Answer 3

With the types of memory that you asked, here are the evolution story:
SDRAm -> DDRAM -> DDRAM2
They are the result of technology evolution and the latter will always resulted in faster speed and efficiency.
And if you are trying to make a decision for buying or building yoursefl a computer, then go for the latest, that is DDR2 with the highest bandwidth avaiable.

Answer 4

OK, different kinds of ram do different things. One type is temporary storage, and some other kinds are perminent storage.