The fastest CPU in classic 68K mac's was the 040. In some cases it was clocked at 100MHz
yes and no. All 040s use an internal clock at twice the frequency of the external clock, so that was a 50Mhz 040, you had expansions like that for amiga, for example the x-calibur board. Check out every 040 board and you will see that all of them use a crystal with twice the speed of the cpu. So there are no 100Mhz 040s...
