From their own websites:
Canondale 44cm Synapse Women's standover height is 71.6cm
Trek Madone 4.5 standover height is 69.2 cm
Trek Lexa S standover height is 69.1 cm
Trek 1.2 (men's) 47cm standover height is 69.8

That 2 and a half cm CAN make a difference. I personally have to have a bike with a standover height of UNDER 70.0 cm to be able to standover it with my feet flat on the ground. The 69.8 is what my current bike is and I have no clearance at all when I stand over it. My current bike is the extreme limit of what I can ride.

As you can see a 44cm Canandale is bigger than a 47cm Trek, by enough that it does not equate. I personally have tried to stand over a Canondale 44cm of the new bike and cannot do it with my feet flat on the the ground. I have to be on my tip toes. With the Trek Lexa 47cm I can stand over it with my feet flat on the ground.