As super6646 has said, the GTX 960Ti has not been announced, and rumors about it stopped a while ago.
Next month Nvidia will reveal a new card, the rumored 980Ti, and AMD will launch the 3x0 series. With that I'm trying to say that if you can hold your puchase until the end of June, you could end being able to buy a better card for your money.
But in case that you can't wait, go either for the 960 or the 285.

Please excuse my bad English.
Former gaming PC: i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Current gaming PC: R5-7600, 32GB RAM 6000MT/s (CL30) and a RX 9060XT 16GB
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.







