Is 550w enough?

Hardware Hub PSU
1

Hi, I'm about to order my first pc. I was planning on getting a Corsair RM650 for the build, but they are out of stock, and I'm really tired of waiting. So, I'm wondering if an Corsair RM550 would be enough for this build, or if I should get  a Corsair CS650 instead (or something entirely different.)

http://pcpartpicker.com/p/3jL77 Here is the rest of the build. Would really appreciate some help. Thanks.

2

as long as you dont go for a second gtx770 you will be fine with 550w

3

Thanks.

I'm just sticking with that. Not gonna overclock or put extra stuff in the rig yet. When I do, I will probably upgrade the psu. Just want the pc to run for now :P

4

also, be careful no to go too large, it will be inefficient and you will have wound up wasting money because your PSU might never reach its max efficiency level.