well AMD's old naming convention was meant to be a gauge of its performance to consumers who only understood megaherz. the 2500+ was so named because it performed a similar number of operations per second to a 2.5ghz pentium 4 of that era. however both manufacturers now use a "a number" instead of the frequency, this is no doubt because joe average would look at a 64bit athlon labelled "2ghz" and think of it as slower than a 32bit pentium 4 labelled "3.2ghz", which is a pity. btw i also believe intel chips are pricier than AMD's because of the quality tests intel put their chips thru, per yield they will throw away more chips than AMD, that doesnt mean to say that if you have an AMD chip it wont be stable etc, just that you can guarantee stability/performance with intel. (PS I say that as an AMD fan, no need to hate something just because you bought the other chip)