How many Watts do I need in a PSU so I can have GTX 670 SLI

[Davidmitrevski]

I am recently thinking about upgrading to SLI,
My current PSU has 600W, it is a SST-ST60F-P and I own the following:
GTX 670
Intel Core i5 3570k
ASROCK Z77 Extreme 4 Motherboard
Then just an average power usage monitor


Is this enough for SLI, or would I need a bit more, I might also be overclocking my CPU by a bit, but yeah, if anyone knows if this is ok, let me know
Thanks!

 

[Xavier Tan Sync]

The minimum is 500w for GTX 670 and your computer setup is good to go . I would still suggest you go for 700 W power supply for more stable power consumption