I'm sure it's listed on product page. And we can't just say if 600W is enough, other parts of your PC consume power too. Unless you have 600W to spare, then yes it would be enough.
-snip- You'd want at least 500W min output. -snip-
600W would be fine. You'd want at least 500W min output though. What's the model of your PSU? I'd not recommend keeping it if it's low quality.
Stealthstream