Processor
The brains of any PC is the CPU, or central processing unit. It is the single most important component, but that doesn't mean you need to rush out and splurge on the processor with the fastest clock speed. Both Intel and AMD charge a premium for their top-of-the-line CPUs. For most users, we recommend scaling back a notch or two. You'll save a lot of money, and generally speaking, you get better bang for the buck with more memory.