Nice little article explaining DDR3 in clear terms.
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First and foremost, DDR3 is not just a faster version of DDR2. In fact, the worst piece of misinformation I see spread in enthusiast forums is how DDR3 simply picks up speed where DDR2 left off... which is as accurate as saying an airplane picks up where a kite left off. DDR3 does improve upon the previous generation in certain shared areas, and the refined fabrication process has allowed for a more efficient integrated circuit (IC) module. Although DDR3 doesn't share the same pin connections or key placements, it does still share the DIMM profile and overall appearance. From a technical perspective however, this is where the similarities end.
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