Hi just ask me, your download speed is governed by the package that you are receiving from your provider, at the moment I am on 8Mg,Sky are going to upgrade it to 10Mg in the near future.BUT it is again governed by how far you are from the telephone exchange and the condition of your connection.In my case I am about 3 mile from the exchange and only get Max 1.1Mg.This will or might vary depending on the amount of users/time of day.There are several speed checkers on Google ,the one I've put the link to is the one I use.Your provider should also have a checker on their site.
Hope that's been of some help.
Lindsay.