Impact of Hard Drive Cache

What practical difference is there in using an internal hard drive with 16 vs 32 MB cache? How noticeable would the performance difference be, and under what circumstances?
Thanks.

HI-
A larger cache means more data can be held in ready access=faster performance.
The most frequently used data is held on the hard drive cache.
Cache isn't all, though.
Platter numbers and platter density are important as well.
A two platter 640GB drive with 16MB cache will outperform a 1GB 4 platter drive with 32MB cache.
The same 640GB drive at 7200 rpm also outperforms a 10k rpm drive with equal cache and only one platter.
A larger cache will help without you really noticing, save for snappier operations.
The easiest way to see, is to boot to a smaller cached drive, run some routine applications, and then reboot to the larger cached drive and run the same.
But, again, cache size isn't the whole story........

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