Chris Bradshaw :
LukaBoki :
It's a Tier three PSU and while it can probably be enough,I wouldn't risk it.
An EVGA G2 750W would be a good option for a PSU and it would be plenty for your system.
Also,SLIing isn't really the solution.It can cause problems sometimes and it isn't that useful if you're not running two or more monitors.
I would get a single R9 290 or a GTX 780 and that would be more powerful than 2xGTX 760s.
All the best.
The reason I want SLI is that I already have one 760 so it won't cost that much. Also, from what I've read, 2x760's will beat or match a 780 in almost every test and even beats the titan in some.
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Well then,you can get the second GTX 760.
But still,I wouldn't use the PSU as it is Tier Three and the best in the world.
It maybe can provide enough power for your system,but why risk it with such a high end build?
Also,what CPU and motherboard do you have?