Real Wifi Througput

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So how much real throughput can you actually get if you saturate a Wifi channel. Here are some examples. The net is you get about half the effective throughput. So for most devices that are doing 802.11g at 54Mbps, you are geting about 25Mbps. How does that translate? Well with my Sony RX100 camera, the highest video rate 1080i60 is 24Mbps, so that would just saturate that link. Put another way, taking 20 megapixel JPEGS typically gives you 2.5MB compressed file sizes, so you could send about one per second on that channel.
As an example, the new Samsung NX300 wifi is 802.11b/g/n dual channel so theoretically capable 300Mbps so could handle six times more or five frames per second and easily handle the video stream
WiFi Speeds vs Real-World Throughput | WiFi How To

Here are a few examples of typical max advertised speeds and actual TCP performance:

  • 802.11b Advertised: 11Mbps | Actual: 5-6Mbps
  • 802.11g or 802.11a Advertised: 54Mbps | Actual: 25-30Mbps
  • 802.11n (dual-stream) Advertised: 300Mbps | Actual: 150-160Mbps

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