I do not know if you say it because the hierarchy of Tom's Hardware put it that way (which is wrong in my opinion, since the 1050 Ti is at the level of the GTX 770 not that of a GTX 960, which will tell you why below) Guru3D shows it to you, and I say it because it is a trust page.
Http://www.guru3d.com/articles_pages/msi_geforce_gtx_1050_and_1050_ti_gaming_x_review,28.html
These bad, is not equal to a gtx 960, is slightly better than a gtx 960, ironically in the old games the gtx 1050 Ti takes you 10 fps or more, and that's why my brother has an EVGA GTX 960 of 4 Gb and my gtx 1050 Ti from Evga is slightly better. Finally, I have a friend who still keeps his GTX 770 with an I7 4770k and my GTX 1050 Ti gets the same fps or even in some games it takes 3 fps or 6 fps. So no, the gtx 770 is no more powerful than the GTX 1050 Ti, it's the same or a bit worse than a 1050 Ti