Originally Posted by wilsonp

One of the advantages of the Nissan 7AT is it is full and aggressive lockup in every gear but first, so the torque converter actually doesn't cause losses versus the manual.

My torque in gears charts seem to show the 7AT has more effective torque due to gearing from 1-4, only in 5th does the 6MT have more effective torque. I'd expect the 6MT to make up groused over 125MPH and comparing the Car and Driver 6MT test and 7AT tests see to bear that out. The 6MT goes from .9 seconds behind at 120 to .2 seconds behind at 140 MPH.

Nissan really designed both transmissions very carefully.