640 Gb HDD 5400 RPM or a lower Gb HDD with 7200 rpm?

One of my buddies is willing to sell one of his 640 Gb HDD for $40 but it's a 5400 RPM. Should I take that or should I just go with a lower storage HDD with 7200 RPM? Will there be any big difference I can see that will affect if I choose the 5400 or 7200 RPM?

This PC will mainly be used for light gaming, watching vids, and browsing stuff like that.

Thanks
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  1. bingaloman said:
    One of my buddies is willing to sell one of his 640 Gb HDD for $40 but it's a 5400 RPM. Should I take that or should I just go with a lower storage HDD with 7200 RPM? Will there be any big difference I can see that will affect if I choose the 5400 or 7200 RPM?

    This PC will mainly be used for light gaming, watching vids, and browsing stuff like that.

    Thanks



    How much lower in size (GB)?

    Personally I have 2 1.5TB Green drives and I use them specifically for viewing HiDef MKV files without hiccup. However I also do photo and video editing and for that I use the 7200 (WD Black) drives.
  2. It depends on what you want to do. If you don't mind using a lower capacity drive, then a faster drive might suit you better. If you need more capacity, then you might be willing to sacrifice speed for capacity. You can probably go under 640GB without any issues, but maybe you'll want more capacity for stuff such as storing TV/movies/audio or other things on your computer.
  3. All other things being equal, the 7200 rpm drive will be 33 % faster than the 7200 rpm drive.
  4. JackNaylorPE said:
    All other things being equal, the 7200 rpm drive will be 33 % faster than the 5400 rpm drive.


    Not necessarily. The spindle RPM is about 33% higher, but different capacity densities, caches, and more can affect performance greatly.
  5. I have a 2TB WD Green drive that is 5,200 rpm and the video playback is fine and it runs well with burning dvds. For video editing or video recording you may want to use a 7,200 rpm drive. If you plan on using the drive as the boot drive, i'd go with the 7,200 rpm drive.

    With a higher capacity drive you'll most likely will need about the same size of another drive (or a dvd burner) to back up any important data.
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