R9-280X and GTX770 are comparable cards, both in performance and price.
I sense more dissatisfaction with the R9-280X than with GTX770.
With the amd drivers too.
But, there are always problems with any product.
It's very common to see problems in every card. It would be a smart move when we choose the card upon our requirements.
In my budget, R9 280X comes with 3GB Vram whereas GTX 770 comes with 2GB. It's a baffling fact lol.