AMD Socket-A 133MHz FSB/DDR Overclocking Guide

We start off with Linpack to see exactly what the 133MHz FSB and 133MHz memory bus (both DDR) buys us over the regular 100MHz FSB and 100MHz memory bus we were starting off from in a non-overclocked state. As you can probably guess, the 33% increase in clock speed increases the raw performance of the CPU in this test by 33% as long as the data set is small enough to fit within the 64KB L1 Data Cache or the 256KB L2 cache of the Athlon. After that, the performance advantage drops off to 25% and below as the data set continues to increase in size.

Looking at the Duron's Linpack graph we notice a similar performance trend. While the data set is small enough to fit within the Duron's 64KB L1 Data Cache the performance improvement our overclocked processor offers is 33%, which is a 1% per MHz increase in performance. However, since the Duron doesn't have as large of a L2 cache as the Athlon the performance drops off much sooner than what we noticed on the Athlon.