How superior would you need such a card to be to the 750ti, what are your present/past needs? That's part of the problem too.
I owned a 750ti for a while and even if it hadn't been faulty, it would still have had a very short time in my computer thanks to The Witcher 3 and XCOM2, which even on its successor the R9 380X, initial versions of those games chugged on. I can't imagine what they would have been like on the 750ti at that time.
And is it power draw you're definitely interested in or the cooling noise level? While I loved my 750Ti because its fan noise levels didn't raise hell like its predecessor the 5770, my 380X's fans are by default off when it's doing 2D stuff, and while the fans are definitely audible when gaming, it's nowhere near the 5000RPM ceiling that the 5770 would hit. If I had to guess, I'd say the 380X fans do 2000-3000RPM at worst.