At 11:28 PM +0100 01/03/2006, Are Hansen wrote:
Thinking I should upgrade the slow stock HD in my iBook. ASP tells me it's a Hitachi IC25N040ATMR04-0, and Google says that's a 4200 RPM drive!

What if I exchanged that for a 7200 RPM, would I notice a speed increase? The Hitachi TravelStar 7K100 seems affordable

A 7200rpm drive should be fine.

And it will be faster.

But keep in mind you're talking about much smaller diameter disc platters than you have in full sized hard drives, so the radial velocity and therefore latency times are different. IOW, a 4200 rpm laptop drive is almost as fast as a 7200 rpm full size HD.

- Dan.

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