Which is better, 8at or 9at gearbox?

I think 8AT and 9AT gearboxes have their own advantages, and which one is better depends on actual needs and preferences. The advantages of 8AT gearbox are high fuel economy and low-speed acceleration, while the powertrain of 9AT gearbox is higher and the shift smoothness is better. When choosing, you need to weigh it according to actual needs and preferences.