Should I go with 550W or 650W PSU on this rig?

[Rade155]

I can't decide what PSU to get, this is the rig I am building:

Intel i7-4790K
Noctua NH-D15
MSI GAMING 4G GeForce GTX 970
G.SKILL Ripjaws X 2x8GB 1866
Asus Z97-A

Should I get a 550W or 650W PSU? And do you have any recommendations?

 

[Danbuscus25]

550 is fine, but if you want to add another 970 in the future, get a 650

 

[Rade155]

550 is fine, but if you want to add another 970 in the future, get a 650

I was told that if I want SLI with another 970 I should go for 850W?

 

[Danbuscus25]

lol 90w for cpu, 150w each gpu, 10w for hdd, a few for ram and fans, you get around 450w, more when overclocked, but certainly not even close to 850

 

[huilun02]

The GTX 970 has a TDP of only 145W, so you could argue a 500W would be sufficient to run two of those in SLI.

Only problem is, you'd need a PSU with enough 6/8pin connectors because it seems each 970 may require one 6-pin and one 8-pin.
Most 500-550W PSUs don't have that many connectors.

 

[Rade155]

I was originally gonna go for EVGA SuperNOVA G2 750W until I was told it is in no-mans land (650 enough for 1, 850 enough for 2)! But was that the right choice or overkill? It is only $115! Or would you recommend something different 650W?

 

[Danbuscus25]

http://www.ncixus.com/products/?usaffiliateid=1000031504&sku=59616&vpn=P1650SNLB9&manufacture=XFX&promoid=1310

i would get this, it can handle 2 970's and has enough connectors, while staying under $50

 

[Rade155]

^It comes up to $90 in Canada (not counting rebate, which I will never use)! And 80+ Bronze! I would like something with Gold if possible! Was looking SeaSonic but it is more than that EVGA!

 

[Danbuscus25]

http://www.directcanada.com/products/?sku=16950AC8866&vpn=120-G1-0650-XR&manufacture=Others#specifications

 

[Rade155]

^ I was considering that one, but not greatest reviews: http://www.hardocp.com/article/2014/05/16/evga_supernova_nex650g_650w_power_supply_review/9#.VDTV_RbJeO0 Can be loud and only "good enough"!