Welcome to the forums!
It seems we've got a lot to teach you! I'll get started, I suppose.
First, clock speed is not the only thing that matters in a processor. The only time you can compare to processors by their clock speed alone is when they're different versions of the exact same thing. For example, a current Intel Core i7 quad core at 2GHz would be much more powerful than, say, an AMD Athlon II quad at 2GHz, even though they have the same clock speed. Basically, simply stating a clock speed and nothing else is like saying you want a car with eight cylinders, but not specifying how big you want the engine to be or how much power you want it to produce.
Second, a laptop's processor, as well as most of its other internal components, is usually not something you can upgrade like a desktop. Even if you
can upgrade it, the best upgrade is still usually not much more powerful. In your case, the processor is soldered to the motherboard, which is very common. Sadly, this means that there's no possible way to upgrade it.
The processor that's in your system is a dual core AMD chip designed for low power usage, not performance. It is supposed to be used in netbooks. It's significantly more powerful than the Intel Atom processors you usually see in netbooks, though. It should be plenty for browsing the internet, or any other everyday task. The integrated graphics chip should handle most of the stuff that the processor couldn't, like decoding high-definition video or using Flash-heavy websites like Youtube.