It is a lot more than you need. Could power a GTX 760 on a 450W.
So go for it. 760 is a good card. You might also consider the 7950, if you want to overclock
Questions about psu´s belong in the "psu" section.
Please next time post in the right section. That will keep the forum more clean.
Great Angel ☺
Thank you Berserker and good to know. I wasn't sure initially whether to post in here, GPU, or PSU.
no problem ☺
but yeah 600W is enough by the way like Berseker said.
No problem. I've seen rigs running i7+Titan off 450W SFX PSU and OEM Microtowers i5+7970 off 330W external power brick