wow So we hope our findings put an end to all of the discussion about who’s got the fastest processor on the market, that processor is none other than AMD’s Athlon 64 FX55. Due to diminishing returns the Pentium 4 processor needs a whopping 5.2GHz clock speed to keep up with AMD’s flagship processor. So was it a good decision on Intel’s part to announce it will not be shipping a 4GHz processor? We think so, as the Pentium 4 was just never going to best AMD’s Athlon 64. Craig Barret clearly had guts and vision when making that decision, or, and that’s just as likely, he knew the 4GHz Pentium 4 needed another 1.2GHz to soundly beat AMD’s fastest, and that just wasn’t feasible.