What does AMD Athlon 64 processor models represent?
Since frequency alone is not an accurate measure of performance, AMD model numbers are a simple, accurate representation of relative AMD processor performance based on industry-standard software benchmarks. The higher the model number, the better the overall software performance running on the processor. The + at the end of each model number indicates the added performance benefits delivered by AMD’s innovative processor designs, such as an integrated memory controller and HyperTransport technology. These two factors alone account for a significant improvement in performance.