Don't knock AMD
AMD's chips ran better than Intels for years. Intel had the P3 which sucked badly and then the P4 which initially was even slower than the P4 until they clocked it high.
P4 was destined to clock high and end up sucking hundreds of watts of power at it hit the intended max of 10GHz.
Thankfully AMD competed with Intel and Intel finally designed some good CPUs in the Core2 Duo range.