Does MACH3 drive the axis faster than the old software?

MACH3 on its own cant blow up a transistor but it could potentially stress the system more as it is far more capable.. High deceleration rates will generate much higher back EMF (Robin's clonk) and if that happens on two or more axis simultaneously with a older less regulated power supply the surge could take out older transistors which may already be running hotter than designed for due to MACH3 working them at a higher duty cycle..