That power supply is awful. The CX corsair series is much worse compared to the Antec EarthWatts series. Also, the i7 and 16GB of ram is absolutely overkill for gaming. There's no reason to spend more just for the hell of it when there is such a small benefit. Overall OP would still have a near identical gameplay experience from setup as yours. The largest improvement would be 10-15 fps, which is hardly noticeable especially with the performance Nvidia is boasting. Better to stick with a cheaper build, and upgrade to what you need, not what simply performs better. For gaming an i5 is the best choice.