The 700 has higher torque capacity, larger case, heavier.
Here's the split between the 200 and 700, based on RPM change.
200R4: 2.78:1 1st gear recovers 56% shifting to 1.57:1 2nd gear, recovers 65% shifting to 1.00:1 3rd gear, recovers 67% shifting to .67:1 OD.
700R4: 3.06:1 1st gear recovers 53% to 1.63:1 2nd gear, recovers 61% to 1.00:1 3rd gear, recovers 70% to .70:1 OD.
The 700 has 10% more torque multiplication in 1st, and 4.5% higher RPM in OD.
