I have an Intel i5-4670 processor, and I was thinking of getting an AMD Radeon 270 card but the prices are higher than they used to be. Since a certain model of Nvidia 760 is $237 right now, I feel like it is a better deal in comparison to the 270s. If I want to play games on the highest settings on one 1080p monitor with 60+ FPS, is the 760 too over the top for my purpose? What should I get between the Nvidia 660, 760, and AMD 270? Thanks!