Is this psu enough?

[MamamIV]

Currently running a Gtx 970 g1 edition and the old 700w pure power l8 from be quiet. Planning on getting another 970 cheap from ebay and wondering if my psu will be able to handle both of these cards? 

[Guest]

More than enough for both graphics cards.

 

As long as it's not more than 8 or 10 years old.

 

[Colexd]

yes

[MamamIV]

Thanks for the answers, I guess I have to test how far I can overclock in the configuration. My 4670k is running at 4.4ghz at 1.25V and my 970 is running att approximately 1510mhz. Do you think that the overclocks will be a problem. Is the psu a close call. 

 

I have seen some benchmarks and the system under load with 2x970 only consumes about 500W so I guess I ha e plenty of Headroom?? But a lot of people recommend 850W 80+plat which seems like overkill.