If the label were accurate, yes. Unfortunately, that Coolermaster series is overrated and otherwise low quality, so I wouldn't. A quality PSU has full range active PFC (no little voltage switch; unlike that CM), and 80+ certification. Antec, Seasonic, Corsair, Enermax, and XFX are among the better brands. Although inefficient, that CM PSU will suffice for a single card, but when you get the second, I'd replace the PSU also, probably with a 650W Antec Truepower New or Seasonic X-650.