500W PSU enough for the gtx780?

riniks92

Distinguished
Feb 3, 2009
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I've been considering to buy the Palit GTX 780 Super Jetstream Overclocked but I'm don't know if my PSU would be powerful enough.
The PSU I got is OCZ CoreXStream 500W
And it only has 2 6pin connectors but I suppose the gfx card comes with a molex adapter.

PC specs:
i7 3770k (not overclocked)
8gb ram
gigabyte z77x-ud3h
2 hard drives

I also plan to overclock the card even further.
I know I might be pushing it but it's just that the card already costs 400£ and to pay 70£ extra for a new PSU would be quite painful.