High-Speed Downlink Packet Access (HSDPA) is an enhanced 3G mobile broadband access - so yes in theory its the same thing/product........ The speed of access will depend on your phone technology and network capacity of your mobile phone company. I.E, how big is the bandwidth that is being provided to your phone in Mbts. it will vary from operator to operator geographically. Find out from a few mobile phone shops who has the best network access in your area and if the mobile operators have been upgrading their network. I am aware that Vodafone, T,Mobile and 3 has been upgrading their network, but 3 is a smaller network.