text: AMD Builds on Athlon 64 Platform (NewsFactor) NewsFactor - With two new Athlon 64 chips, AMD (NYSE: AMD) continues to push industry giant Intel\in the battle for position in the desktop-processor space. AMD has\launched the Athlon 64 FX-55 and Athlon 64 4000, with an eye on carving\a bigger niche in high-performance personal computing.