what different ddr400 ddr2400?

Question

If my motherboard support
DDR2 667/533/400
that means i can used ddr400 inside the motherboard.
But DDR got 184pin DDR2 got 240pin.
It sure can support.who can tell me.Thanks

Answer 1

Stands for "Double Data Rate 2." DDR2 RAM is an improved version of DDR memory that is faster and more efficient. Like standard DDR memory, DDR2 memory can send data on both the rising and falling edges of the processor's clock cycles. This nearly doubles the amount of work the RAM can do in a given amount of time. DDR and DDR2 are also both types of SDRAM, which allows them to run faster than conventional memory.

While DDR and DDR2 have many similarities, DDR2 RAM uses a different design than DDR memory. The improved design allows DDR2 RAM to run faster than standard DDR memory. The modified design also gives the RAM more bandwidth, which means more data can be passed through the RAM chip at one time. This increases the efficiency of the memory. Since DDR2 runs more efficiently than standard DDR memory, it actually uses less power than DDR memory, even though it runs faster. The only downside of DDR2 memory is that it is not compatible with standard DDR slots. So make sure your computer supports DDR2 RAM before upgrading your memory.

Answer 2

im guessing you mean ddr2 400. the main difference between DDR and DDR2 is that ddr2 is a new standard for computers and requires its specific socket. the 400 on both means that they can work in speeds up to 400MHz. ddr2 often has worse timings (data read write) but it has a larger data transfer capability.