Top Wifi speed on a 3G iPhone

Discussion in 'iPhone' started by lostngone, May 9, 2009.

  1. lostngone macrumors demi-god

    lostngone

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    #1
    I have been playing around with Wifi download and upload speeds on my iPhone.
    What is the fastest sustainable throughput the iPhone 3G is capable of assuming the iphone is just storing or sending data via Wifi.
     
  2. lostngone thread starter macrumors demi-god

    lostngone

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    #3
    I know it uses 802.11g however I can't get anywhere near the 30Mbps. I can't get over 10Mbps.
     
  3. kzoojason76 macrumors member

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    Jul 11, 2008
    #4
    Are you sure you're connected to an 802.11g access point? Could it be possible that you're connected to 802.11b which is 11Mbps??
     
  4. JBaker122586 macrumors 65816

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    Jun 21, 2007
    #5
    You also likely don't have an Internet connection faster than 10mb, so you're not going to be able to get faster download speeds than that despite what your router and/or the chip are capable of.
     
  5. lostngone thread starter macrumors demi-god

    lostngone

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    #6
    What does the speed of my Internet connection have to do with the throughput of my iPhone???
     
  6. MadMacxxx macrumors 6502a

    MadMacxxx

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    #7
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5H11 Safari/525.20)

    Hmm let's see, if your subscribed to a 5mb or 8mb data package from your ISP, then that's all your going to get. I have 20mbps package from my isp and the max I've gotten through to my iPhone is a little over 10,000kb/s
     
  7. iNash macrumors 6502

    iNash

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    #8
    Quite a lot!

    As others have mentioned no matter how fast the iPhone can cope with you are limited to the speed of your internet connection in the first place.

    For example at home I have ADSL and on my iPhone I get around 6.2Mbps downstream and about .4 upstream.

    At work when connected to WiFi and sat next to the router I get 50Mbps down and up on my laptop the fastest speed I have ever had on my iPhone is 20Mbps down and up.

    Although not really sure why on an iPhone you would ever really need more than 5Mbps?
     
  8. sjsnyc macrumors newbie

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    May 12, 2009
    #9
    you're not going to get 30Mbps with 802.11g; 27Mbps is about the max. as far as the iPhone 3G, I tested the device in a near perfect environment inside an anechoic chamber (RF isolation chamber) and could only achieve throughput around 9 Mbps.
     
  9. jav6454 macrumors P6

    jav6454

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    #10
    I agree with this. I tested my iPhone with a 20 Mb/s and barely got anything above 3 Mb/s. Still, 3 Mb/s is quite fast considering its a phone.
     
  10. TheSpaz macrumors 604

    TheSpaz

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    Jun 20, 2005
    #11
    Perhaps Apple reduced the antenna strength to preserve battery? I mean, it is a mobile device, not a desktop computer.
     
  11. fishepa macrumors regular

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    Mar 9, 2009
    #12
    802.11g is also half-duplex so you will never get more than about 13mbps one way at a time.
     
  12. sjsnyc macrumors newbie

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    May 12, 2009
    #13
    27 Mbps :eek:
     
  13. mavis macrumors 68040

    mavis

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    Jul 30, 2007
    Location:
    Tokyo, Japan
    #14
    I have a 100Mbps fiber connection, and usually test in the 60-70Mbps range on my Mac. I've never seen my iPhone over 7Mbps, though.

    I just did two tests, back to back. On my Mac:
    [​IMG]

    Thirty seconds later, the same server from my iPhone:
    [​IMG]

    I'm sitting about three feet from my AEBS, which is showing the iPhone connected at -45dBm signal, -95dBm noise, and 54Mbps rate. Obviously the signal strength is fine, the connection is great, but the iPhone simply doesn't have the horsepower to process the incoming data very quickly. Whatever. It's fast enough.
     
  14. lostngone thread starter macrumors demi-god

    lostngone

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    #15
    Huh??? :confused:

    I am not downloading or uploading anything off the internet for my tests. I am copying files between the iPhone and a computer that is plugged directly plugged into a TC.
     
  15. iNash macrumors 6502

    iNash

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    #16
    Ah right sorry, missed that.

    There is still a lot that could impact the speed, any of the following located near the router:

    • Cordless DECT phones
    • Microwave
    • Other mobile devices
    • etc
     
  16. Ninja Dom macrumors 6502

    Ninja Dom

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    Feb 12, 2007
    #17

    I suppose that answers that then. :)
     
  17. alex2016g macrumors member

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    Jun 2, 2008
    Location:
    UK
    #18

    :eek::eek::eek:
    ohhh i wish i had your connection, mine is so bad that from pm to 11.30pm actual download rate falls to ±150kb/s, its around 1.2mb/s normally.
     
  18. sjsnyc macrumors newbie

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    May 12, 2009
    #19
    DECT operates at 1.9 GHz and should not affect your WiFi operating at 2.4GHz. there are, however, other non DECT cordless phones operating at 2.4
     
  19. Michael CM1 macrumors 603

    Joined:
    Feb 4, 2008
    #20
    Computing is always a lowest common denominator game. If you're using multiple pieces of hardware, the slowest one will determine how "fast" your machine is.

    If your broadband connection is 1.5Mbps, a gigabit (1,000Mbps) router won't do you a bit of good with Internet speed. If you have an 802.11b (11Mbps) wireless access point, you won't see much use in the 802.11n (100+Mbps) devices.

    It's the same deal with an eight-core CPU with 1GB of RAM. If you are slowed down by something needing more RAM, you have a lot of wasted CPU cycles with that machine. It goes on and on.

    So in other words, your speed test TOTALLY depends on how fast your Internet connection is.
     
  20. mavis macrumors 68040

    mavis

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    Jul 30, 2007
    Location:
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    #21
    Wirelessly posted (iPhone 3G (white): Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7A312g Safari/528.16)

    No, that's not true at all. See my speedtest result above for proof. ;)
     
  21. Michael CM1 macrumors 603

    Joined:
    Feb 4, 2008
    #22
    I think I maybe worded it wrong. I know that the ISP speed isn't the lone factor. I think I've TOTALLY been watching too many surfer dudes talk or something. Your test results demonstrate how different speed components are effected pretty darn well. As you said, a slower CPU and less RAM lessens the effectiveness of whatever speed data connection there is.

    I saw a rumor that the new iPhone was going to have a faster CPU and more RAM. Hopefully that'll speed stuff up because some apps seem to take FOREVER to download info. I'm really thinking about the AP Mobile News app. It takes forever just for a few headlines to change.
     
  22. Dr. Cabrera macrumors 65816

    Joined:
    Aug 25, 2008
    Location:
    Los Angeles
    #23
    Consider this a best case scenario ( my school throttles our upload speed for some reason, but download is unlimited )

    gigabit ethernet card on a T3 line


    [​IMG]

    iPhone on Dlink 80211 G

    [​IMG]
     
  23. mavis macrumors 68040

    mavis

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    Jul 30, 2007
    Location:
    Tokyo, Japan
    #24
    Wirelessly posted (iPhone 3G (white): Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7A312g Safari/528.16)

    Yeah, AP Mobile News is painfully slow. But I think that's more of an app bug than anything, because I don't really have that problem with any other apps. BTW, setting it to only keep stuff for one day helps a bit. 
     
  24. MadMacxxx macrumors 6502a

    MadMacxxx

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