Intel i3, i5, i7 vs AMD?

AMD FX-8120 Trounced by Intel i3-2100, Obliterated by i5-3570, laid to rest by Intel i7 3820. AMD Bulldozer, R.I.P. Performance Analysis With the addition of numbers for the Intel Core i3-2100 and Core i5-2400 in some of our benchmarks, it's plain to see

answers.yahoo.com