for the same price I think 380 would be a better option
Please explain ^ this link above ^ on how you think the 380 is better than the 960?
GPU Boss isn't the best way to compare graphics cards. Game benchmarks are much more important for a gaming PC. While I prefer Nvidia, the r9 380 usually performs slightly better in gaming benchmarks. Even from the link you posted the 380 won in both games they tested.
The two cards are similar enough in most games that it is probably fine to go with a 960 if you prefer Nvidia. There is no denying that the 380 will get a few more FPS in most games though. It's just not as big of a difference as some people would have you believe.