Does anyone know if there will be a significant difference in performance between a an internal HD SATA cable that works at 3G bits/sec and one that works at 1.5 G bits/sec? Theoretically should be twice as fast but then there is HD and buss speed to consider.

I bought three 1.5 G bit cables on-line because I was told they were the fastest on the market, then I found the 3 G bit ones. I'm thinking not worth the hassle to pay to send these  back and order the faster ones.

Running Win 7, WD 1TB HD, MSI MB, 800 MHz buss.

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