The 390 and 970 trade blows across titles. It's a bit of a toss up. They each have their benefits.
Also one more thing. Would the i5 4690k be a huge improvement over 8350
Not huge, but noticeable when you look at the numbers. Games that favor core speed over core count, most of them, will show higher scores with the i5 by a fairly decent margin.
So is it worth 60 dollars? And also thanks for replying