am i really going to notice slower drive speeds?

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been looking around the net at the new MBP SATA interface using 1.5GB's instead of 3.0. am i really going to notice the different in drive load speeds? ect.

i've heard that a 5400rpm drive cant fully use 1.5GB's anyway if this is true.

i'm getting worried now as i have ordered mien then seen these posts

 

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really do not know lol, is my mac likely to exceed this

 

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i no im changing the thread now, but can any ssd be put into the macbook pro, like any ssd's off ocuk ?

 

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will a simple firmware update from apple fix this or isit a big issue?