Oh please, AMD CPUs had lower clocks so to compete with Intel's (making up numbers to illustrate the point) 2.3Ghz where theirs was 2.1Ghz, they would call it Athlon 2300 or something to the effect. They may have had a point that their 2.1Ghz was as good as Intel's 2.3Ghz chip, but it's not been straightforward, probably, since a 286. (Edit, I meant to reply to the parent comment)