Only thing I can contribute is... 770 is still a good card in 2019. If you can pick one up cheap, go for it. "Oh its sooooo old so it must suck." People with this attitude is probably the only reason I could afford one. So actually, big thank you to those aged hardware haters out there!
GTX 670 760 770 680 780 are such a bargain. Great for 1080p gaming, 770 can even put in some low-setting 4k work. What you paying for it? That is the real question.