the asus a7v133 has a 12.5x multiplier, and a 133mhz bus. thats 12.5x133=1.66mhz
if you were to overclock the fsb you would get even more. for example 12.5x166=2.08ghz
granted none of the current crop of amd cpu's can hit those speeds yet (at least not with normal cooling and voltages)