Which power supply is best for my rig?

Solution


Hydro is good, but superflower leadex gold is better. Is it better than the g-series? not sure
The PSU you listed is just about enough for that build.

However with a 390 I personally would go for a 650w for some clear headroom

These are both the same price , both very good quality units.

http://www.amazon.com/gp/aw/d/B00KFAFRW6/ref=mp_s_a_1_4?qid=1458196246&sr=8-4&pi=AC_SX236_SY340_QL65&keywords=evga+750w&dpPl=1&dpID=51wUlazRMQL&ref=plSrch

http://www.amazon.com/dp/B017HA3SQ8/?tag=pcpapi-20

The gq is a fairly new unit by fps - there aren't many reviews but the few there are are very very promising & the stripdowns show only class 1 components are used in it.not quite as good as the g2/GS but $30 cheaper & not far behind at all
 
First of all, good choice on parts. The psu has to be at least 650w for the r9 390,I would personally suggest getting the evga supernova g2 650w,one of the best units out there, and even id you don't go for it, don't go cheap on the psu, it's what can kill your expensive build.
 


I think he meant the GPU, which can be a total beast (not good type) when it comes to power consumption since it can draw up in the 400W+ range by itself (momentary, not sustained). A good 750W supply should be able to handle even significant overclock, and 650 is enough without overclock
 


Superflower is NOT the best company, especially their older units. Seasonic is a better bet overall unless you get to the superflower leadex platform units.