Most people know that when buying a new computer, it's important to look at the CPU speed and the amount of RAM (Memory) is installed. But start talking about different type of processors, and confusion quickly sets in.
Intel and AMD are the two biggest manufacturers of Computer Processors (CPU's) and for the average consumer, it really doesn't matter much today which one you get. This isn't true for online gamers where speed is very important. But for the rest of us, who don't want to spend top dollar for the latest and greatest processor and don't need nano-second speed advantages ... the average CPU is usually sufficient.
For those who do care, there is a great site with side by side comparisons of CPU benchmark tests that you may find useful.