Difference between RDRAM and DDRAM

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geno2k3

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I have 1gb of RDRAM clocked at 400mhz dual channel. What is the difference between this and DDR? Is RDRAM good for gaming?
 
* RDRAM is a narrow, high speed serial connection.
* SDRAM/DDR is a wider, lower speed parallel connection. (DDR is simply SDRAM that squeezes out two actions per clock cycle; something RDRAM already does. I'll use the term "SDRAM" when what I'm saying applies to both current SDRAM and DDR, and "DDR" when it applies only to that).

And rdram is only good for gaming purposes
 
Hmm so these things are basically telling me that DDR is actualy better and provides more bandwith.

EDIT: jesus christ! ive been searching around the internet and 1 stick of ddr800 512mb rdram is 224$ @ newegg or 1gb at this unknown site for around the same price. I bought my computer for 150$ whole setup with actually 1gb of this type of ram. So one of these sticks is actualy worth more or as much as my whole system? Jeeze im glad i got a good deal.
 
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