Difference between "Inactive?" and "Free?"

Discussion in 'MacBook Pro' started by Akira1980, Jan 9, 2008.

  1. Akira1980 macrumors 6502

    Akira1980

    Joined:
    May 27, 2007
    Location:
    San Diego
    #1
    I have 2GB of memory on my 2.4GHz MBP. When I use iStat and check the memory usage, I have 620MB of "Inactive" and only 26MB of "Free" memory. Is it time to upgrade my memory to 4GB? Also what is the difference between Inactive and Free?
     
  2. gauchogolfer macrumors 603

    gauchogolfer

    Joined:
    Jan 28, 2005
    Location:
    American Riviera
    #2
    They are basically the same thing. Inactive is memory no longer in use by a program, while Free is just that. Both are available for new processes or programs should the need arise.
     
  3. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
    #3
  4. Akira1980 thread starter macrumors 6502

    Akira1980

    Joined:
    May 27, 2007
    Location:
    San Diego
    #4
    Thanks that info helped. I think I am going to upgrade the memory to 4GB. It doesn't hurt to have more just in case.
     

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