Antminer T series compared to S series

What's the main difference between the Antminer S models and T models? I'm especially curious about T17 compared to S17.

From what I've read its a slight efficiency difference and hashrate.

t17 is one speed and the least efficient model s17 is 2 speeds s17pro is 3 speeds and the  most efficient model

S17+ is only one speed?

T series have fewer chips clocked higher, for roughly the same power draw but lower speed. They should be less finicky than S-series because, with fewer chips, they also tend to have higher core voltage. S-series miners run the voltage close to the minimum threshold for the speed in order to maximise efficiency, which also means they're closer to the limits of stability.

That's the sort of answer I was looking for, very helpful - thank you