Rambus Dram Is Ddr3 Sdram That Much Better For The Money Than Ddr2 Sdram?

Is ddr3 sdram that much better for the money than ddr2 sdram? - rambus dram

I am currently a team game and I wonder which version of RAM you get. Will I be an improvement in the speed of RAM, or is it just something that will cost even more than good, regardless. I also read somewhere a sort of Rambus DRAM faster than improve the value of money to the system performance?

And I have not yet purchased the motherboard, and wondered whether the majority of the upper end ($ 200 - $ 300) from the pad type of DDR3 SDRAM, and I need a dead mother more support RDRAM?

This type of power of memory than their predecessors?

This is my first build, so would appreciate any additional advice. Thank you very much.