Confused about frequency

laidback93

Distinguished
May 18, 2009
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18,510
I have a Kingston kit of 1GB sticks of PC2-5300 DDR2 RAM. Each slot says it's running at 333MHz according to CPU-Z. Shouldn't each stick of RAM be running at 667? Or am I supposed to naturally assume that it's really running double that speed since it's DDR2?

I've always been confused on this and wanted to finally clear things up!