When the K8 generation AMD cores started being thrown into the mix, AMD decided to segment their market space into very different defined areas. The one interesting thing about these market definitions is that they have never been very well defined, at least to the outsider looking in. In fact, the only static difference in AMD processors over the last 18 months has been in their pricing levels. Still, the “FX” line of CPUs have headlined as AMD’s “gaming” processor since the introduction of the FX-51. Rounding out AMD’s lineup is the Athlon 64 X2 Dual-Core processor, the Athlon 64, the Sempron, and finally the aging Athlon XP.