didn't motorola make a clock doubled version of the
040???
That is what is causing a bit of confusion, yes the 68040 is internally
clock doubled, and some advertising used the bus speed and some used the
clock doubled speed.
Quadra 650 has 33 mhz bus and 66 mhz processor.
Quadra 840AV has 40 mhz bus and 80 mhz processor, and its the fastest 68040
mac.