What is ddr2 vs ddr3?
DDR2 and DDR3 are different types of RAM.
Interested that you posted in graphics cards as well. Heres
why:
For system memory, RAM that you can buy and replace on your
motherboard, there isn't any performance difference. ddr3 is NOT
faster at all significantly. Its a different type, you simply need
to get the same type for compatibility. On laptops, ddr3 gives
better battery life but not very significantly.
For graphics cards, this is called vRAM and the types are
usually called gddr2 and gddr3. In this case, gddr3 is MUCH faster.
A single model of card will be produced in both types, which is
confusing, and for example an 8600 gddr3 is probably faster than a
9600 gddr2.