India, micromax 352g dongle, doubt?

i am using micromaxx 352g dongle for surfing. when i download or surf on internet then there is a lot of difference in the bandwidth shown by the browser and the one shown by the data counter software of micromax. such a difference is there in all the other models of micromax too(micromax 353g). can anyone explain me the reason for this? i am giving the screen shot, explaining my problem.....

*img28.imageshack.us/img28/7494/doubtb.png

notice that the speed along the download wheel is 5.7 kbps and that in the data counter is 46.8 kbps.(under the packet received)
i am damn sure that no other internet application is running in the background. i had this question for past 2 years.
thanks in advance.
 
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