The speed you experience with data is a function of two things: 1. The network capability of your network provider 2. The device/dongle/modem capability. If two users are in the same network, using two different devices, the user with higher device capability will have faster speeds. If say you use a 4G modem, in a 3G network, under exactly similar conditions with a 3G modem user in the same 3G cell, the 4G modem user experiences much higher speeds than the 3G user since 4G has superior modulation schemes and standard MIMO (Multiple Input Multiple Output) features. Similarly two 3G modem users experience different throughputs in the same cell accessing the same content because one modem could be MIMO enabled when another is on MISO (Multiple Input Single Output) or even worse SISO (Single Input Single Output). Generally for laymen (and women alike), the higher the cost of the modem, the higher the capability. So you buy the 9,999/- modem, it will beat hands down the 2,999/- modem under similar network conditions.
The laudable is more often than not rendered laughable by overclaim