[build help]500W PSU sufficient on with 660ti ?

thinking of getting this 660TI card but unsure if my PSU will be able to handle it. Other components include 1 HDD (7200rpm), 1 SSD drive, 1 DVD drive, 3570K CPU with stock cooler (may overclock later) and the usual mice/keyboards. on board sound. Would all of this run successfully with a CX500 PSU?