OK that sounds about right.

Never trusted that site, It's good to give you a starting point but there're games which told me I can't run them and I can play them perfectly at max settings lol

I know your afraid to do stuff, what with your selling your PC because you didn't want to switch the hard drive... but it's REALLY easy to plug in a graphics card to a PC.

That's what i did, bought a stock PC from Wal-mart then got a 40-50 graphics card 2-3 years ago. And i'm still good. Not max settings good but i haven't been able to not play something i wanted to yet.

you should worry more about the GPU more than the processor. whats your graphic card? but still your CPU is kinda week though it should be able to run games on low settings, you also have little RAM, its your RAM DDR3?

Haa! Found out the hard way that alan wake does not run on my laptop! blaaaah! bought it in the summer sale. so i guess it'll be unplayed until I get my next pc probably a couple years from now. 

Based on your responses in this thread of what you can and cannot play, I think Alan Wake would eat your pc up and spit it out. I too can play borderlands, and other games like Deus Ex: HR, Mero 2033, Amnesia, etc (medium to high settings). But Alan Wake was chugging far too much even on the lowest settings, there was crazy lag and the framerate was terrible. Unplayable. I think it will be too much for you. You can always buy it at its cheap price and keep it til you have a new pc and play it then. Or you can just wait and grab it in a future sale for potentially less than its going now.

I agree, there have been games that it said I cannot play when in fact they ran quite smoothly on my laptop. Do not take this site as the know-all-be-all.

Yes, I think I'll wait, I raided steam during the summer sales, still haven't even play most of those games yet.

You can find out through steam too.
Go to "Help" tab and click on "System Information"
It will tell you the speed of your processor

To answer your question:

1) Click on the windows button on the bottom left of the screen.

2) Right-click on "Computer" on the right hand column.

3) System column on the middle on the screen should tell you your Processor clock speed, RAM and version of operating system.