As for buying a processor....there is a couple ways to do it.
1. Decide what CPU you want and fits your needs and then find a compatible motherboard (I think is the perfered method) You can find this information on the motherboard's website. There will be a link that will tell you what processors are supported and what version of the BIOS sopports your processor.
2. Decide what motherboard you want and fits your needs and then find a processor that is compatible.
Things To Consider When Buying a Processor
- Budget, how much are you willing to spend for a processor? Price per GHz and price per core are a few things to consider if you get confused.
- What will it be used for? (Gaming, internet, video editing, video encoding, picture editing, multitasking, working at home maybe) What do you do with your computer? A hundred different people do a hundred things with their computers.
- What do you really need for performance. Some people buy for extreme performance and overclockability. Different processors are better for cranking up the settings and getting max performance. Myself, I don't need to score 20,000 on 3Dmark06 to be happy with my system. My Q9300 with a slight overclock running at 2.875 GHz is all I will need for now and a while. I wanted a 45nm Quad but I did not need anything in the top end range so I settled for this one. And it future proofs me, I know I can take my processor up to the 3.2 GHz to 3.5 GHz with no problem, but I don't need to.
- Dual core or Quad core? Quad core will future proof you , but there are few single programs that can even take advantage of all 4 cores at a time. If you multitask (encoding a video, downloading something, music playing, and surfing the web all at once.....Quad is the way to go.) If you are a basic computer user (surfing the web, gaming, and basic things one at a time....dual core will be fine for you)
- These are just a few of the basics, there are many more things but this will be a good start for you in your decision.
Here are a few examples of good processors
Intel Core 2 Extreme QX9770 Yorkfield 3.2GHz for $1,460
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115051
Intel Core 2 Quad Q9550 Yorkfield 2.83GHz for $330
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115041
Intel Core 2 Quad Q6600 Kentsfield 2.4GHz for $190
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115017
Intel Core 2 Duo E8600 Wolfdale 3.33GHz for $275
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115054
Intel Core 2 Duo E8400 Wolfdale 3.0GHz for $170
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115037
Intel Core 2 Duo E8200 Wolfdale 2.66GHz for $170
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115038