would this psu be good enough for gtx 460
http://www.newegg.com/Product/Product.aspx?Item=N82E16817148027&cm_re=500w_psu-_-17-148-027-_-Product
http://www.newegg.com/Product/Product.aspx?Item=N82E16817148027&cm_re=500w_psu-_-17-148-027-_-Product