Tom’s Hardware conducted an extensive review of seven laptop disk drives.  The conclusion was that it’s a horse race for the most part, with one exception:  The 500 GB Seagate Momentus 7200.4.  It’s the first performance laptop drive with that much capacity.

“This clearly is the fastest notebook drive you can get. If performance is all you want, there is no alternative to the Momentus 7200.4.”

While the Momentus 7200 stands out in performance, it has no capacity penalty compared to any 5400 RPM drive, which max out at 500GB too.  The two drive classes are also not that different in terms of price and power draw.   While your mileage may vary, I’ve heard of differences in battery life between 5400 RPM and 7200RPM drives as low as five minutes.

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