Is my PSU good enough for the EVGA 550 ti?

derek1214

Honorable
Oct 25, 2012
24
0
10,510
I plan on getting the 550 ti. My PSU is 500W and says 12v1@18A 12v2@18A. Will this be enough for the EVGA 550 ti? Here's the PSU i have. http://www.newegg.com/Product/Product.aspx?Item=N82E16817154026&

On NCIX it says minimum of 24 amps, do i have enough amps? I'm confused about all this... if someone could help it would be appreciated. Thanks