That is getting to be a hard question now days, since most computers are built over seas in some 3rd world country, to save money they say. I would check the warranties and reliability on websites, and then make my choice. No matter how good the computer is, there will almost always be a problem down the line, you want to make sure someone will fix it without you paying alot of money, or waiting a long time to get it fixed. I happen to work on both Dells and HP, and Dell has a faster time has far as getting parts to the technican to fix. I wouldn't buy anything that has the geeksquad involve in warranty, they break more than they fix. My wife bought two computers there, and they messed them up twice.

What do you need your computer for? If you will only be using it for word processing, you won't need a high computer processor speed . However, your needs will be a lot different if you need it to record music, run graphics programs, etc. If you are a heavy internet gamer, you should find the latest in computer processor technology because new games are often only supported by the new technology.

The two main companies to consider are AMD and Intel. Other companies, such as Compaq, also have processors. Computer processor speed, for example, is a factor to consider when looking into a company. Check product reviews on the internet to make sure you get the most reliable and effective product for your price range.

Pick a model

Once you choose the company, you'll need to pick a model. Factors to consider when choosing a model include computer processor speed , which motherboard you have (some motherboards limit the type of computer processor you can use), and your intended use.

Choose one compatible with your motherboard

Some computer processors will not be supported by your motherboard so this is another factor to consider. If you have an older motherboard, it may not support the latest computer processor speed . Check the specs on your existing motherboard. If you need a processor that your motherboard will not support, consider purchasing another.

Another factor to consider

If you decide on a high computer processor speed , keep in mind that this will cause the need for a more effective computer cooling system. Fast computer processors generate more heat, which can damage the other delicate parts of your computer. If the computer has a powerful cooling system, make sure it does not make too loud a noise as it can detract from your computing experience.

Budget

If your budget is another concern, consider purchasing second-hand or refurbished computer processor . The downside of this option is that quality may be questionable.