Big Difference Between Speed Test & File Downloads

Discussion in 'Mac Basics and Help' started by Graham MacNerd, May 1, 2009.

  1. Graham MacNerd macrumors newbie

    Joined:
    May 1, 2009
    #1
    i have a 1.5 Mbps AT&T DSL connection, and multiple speed tests show a download speed of 1.2 Mbps (and 200 Kbps upload). when i download files, such as software updates from Apple, various podcasts, and even Silverlight from Microshaft, the speed is always between 140 - 160 Kbps. i contacted AT&T, and the rep said it was because of buffering by the servers i was receiving the files from. is this a reasonable explanation? is this an accurate use of the term "buffering"?
     
  2. DeusInvictus7 macrumors 68020

    Joined:
    Aug 13, 2008
    Location:
    Kitchener, Ontario
    #2
    That's because your internet is in kiloBITS (Kb/s), while your downloads will display it in kiloBYTES (KB/s). Take 1.5Mb/s (Megabits) = 1500Kb/s (Kilobits), and divide it by 8, and it will give your your max speed in kilobytes. That gives you 187ish right? You said you're getting 140-160, that should be in kilobytes, not kilobits, so you're doing pretty well.

    EDIT: The AT&T rep you spoke to knows diddly squat. :D
     
  3. ameeps macrumors member

    Joined:
    Jul 1, 2008
    #3
    Sites Have Limits

    Some sites (probably not Apple or Microsoft) have a set limit that people can download at.
     
  4. ameeps macrumors member

    Joined:
    Jul 1, 2008
    #4
    Sites Have Limits

    Some sites (probably not Apple or Microsoft) have a set limit that people can download at.

    Also, the kb/KB MB/mb misconception is what you are really asking about,
     
  5. trevpimp macrumors regular

    trevpimp

    Joined:
    Apr 16, 2009
    Location:
    Inside A Mac Box
    #5
    Dude, Wow. Thanks for answering the question I have been thinking of for a while.

    I was wondering why my downloads were going like 80-100Kb/s when I pay for an internet thats like 768Kb/s.

    I know its low compared to others but its what I can get. :D
     
  6. Graham MacNerd thread starter macrumors newbie

    Joined:
    May 1, 2009
    #6
    you all are great

    thanks for the quick and informative reply. i am glad to finally post in this forum that i get so much good info from.
     

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