How do tell if one hard drive is faster than another?

So I'm looking to buy a hard drive for a new build but I am MUCH more knowledgeable of PC related components now. For that reason, I would like to learn more about HDD's before I buy them.
So, how do I tell if one (7200rpm) drive is faster than another (7200rpm) drive?
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More about hard drive faster
  1. Your next largest indicator would usually be cache, although most 7200 RPM drives these days are equipped with 32-64 MB so that may not be particularly helpful.

    I usually hunt down the drives on PassMark and do a comparison there. The benchmarks aren't perfect, so do take them with a grain of salt, but they can be useful in determining which hard drive to purchase if you're after performance, especially if there's an unexpectedly large gap between two competing drives.
  2. Best answer
    Number of platters is often a good indicator. The fewer the platters, the faster the drive. After that, you will just have to do your research and check out reviews and benchmarks. Quite frankly, I don't think you'll find a faster platter drive out there right now than the 2 & 3TB Seagates with the 1TV platters. Mine will peak over 200mb/s ams sustain single file transfers between 145-160MB/s.
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