How do i compare AMD and Intel CPU's, there are so many CPU's - Which one shall i buy?

Every CPU is Tested for it's performance and bench-marked by experts. Higher the PassMark, better the CPU. Divide Passmark with it's Selling Price and You Got Performance Per Rupee, which gives you fair amount of idea as to how much you want to spend and what you will get. Or Which CPU is Best for Your Requirement and Budget.

One such website is this link ..