I think u should go with the Corsair 750W TX as :-
1. It will give u more power than 650W.
2. The cables are detachable so u can set them up according to ur need.
3.It looks great.
4. The difference between the 2 is not more than 10$
5. It is cooler than the 650W HX
6. With more power ur GPU will perform well which means great visuals .