Understanding MacBookPro Activity Monitor for internet speed

Discussion in 'MacBook Pro' started by obama3344, Nov 27, 2011.

  1. obama3344 macrumors member

    Jan 6, 2009
    I try to understand the Activity Monitor Network Data received/sec

    From speedtest.net, I got almost 0.50 MBPS but from activity monitor the speed that I got never above 65KBPS even when browsing youtube.

    Is 1 MBPS = 100 kpbs? Surely not because 1 mbps = 1000 kbps.

  2. Intell macrumors P6


    Jan 24, 2010
    0.15Mbit/s is 153kbits/s which is 19.125Kbytes/s

    Speedtest.net uses a different method of testing your download speed. It doesn't always saturate the link, thus Activity Monitor would only see a short up spike in usage.
  3. thundersteele macrumors 68030

    Oct 19, 2011
    The one it bit per second, the other one is byte per second.

    0.15 Mbps = 150/8 kilobyte per second ~ 19 kb/s
  4. obama3344 thread starter macrumors member

    Jan 6, 2009
    Thanks. No wonder.
    I have the internet package of 512 Kbps. from the speed test it show correctly 0.5 Mbps.

    When downloading from internet/or viewing youtube, it max out at 65 kb/s
    0.5 Mbps = 500/8 = 62.5 kb/s

    Thanks, now I know how to calculate it.

    1 Mbps not equal to 1000 kb/s.....
  5. snaky69 macrumors 603

    Mar 14, 2008
    1 byte = 8 bits, just remember that and you'll be good to go.

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