So, we saw that the performance can be improved significantly by simply increasing the bus frequency of Athlon XP processors. When we switch from 133MHz FSB to 166MHz FSB (with DDR333 memory used) the performance gain makes 7%-15%. It's a pity that AMD will never take advantage of this opportunity. And it could be of real help especially taking into account that the competition between AMD and Intel has got even tenser after Intel had introduced 533MHz bus.