Yes, you want it to say dual core, quad core or something along those lines.
If you are wanting a laptop for gaming, then yes, processor speed is extra important... but there is something else to consider:
Games like that need a dedicated graphics chip to run very well, or in some cases run at all. This is something you are not going to find in a bargain basement laptop. The laptop you mentioned earlier has a graphics chip built into the chip that runs a bunch of other stuff as well. This makes it slow as it is, but it also shares the memory chips that your computer uses for running your programs... and that makes it slower still. :-(
Gaming laptops are spendy, and there are many factors to consider if you are trying to do this on a budget.
It is REALLY hard to buy a gaming laptop for under $1,000. In fact it is easy to spend $1,500 with some models well over $2,000.
To give you an idea what you are up against, here is a search for "gaming laptops" at TigerDirect:
May I suggest that you have a friend that knows a bit about computers help you through this process? If you want to get through this with the best value possible, you are going to want someone to look at things with you and explain the areas you might not understand yet.
Also, before I forget: Yes the Ghz matter... that is the speed of the chip. That is telling you how many things it can do per second.
If you do not care at all about battery life, you want the fastest processor you can afford. If you are concerned about battery life, then you probably aren't going to be too happy with gaming on a laptop, as they typically have lousy battery life.
Do you absolutely need it to be a laptop? If not, may I suggest a laptop for schoolwork and surfing the web, and a desktop for gaming? You could buy both for the price of the cheapest gaming laptop.
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