1210 watts quoted "at the wall" - an EVGA 1300 would have about 10% power reserve, even my favorite Seasonic X1250s have some power in reserve.
Indeed. Some of the more common official peak ratings are in my PSU guide, although for 24/7 its still going to officially be the stated rating. That being said, I've ran many corsair PSUs past their limits in challenging conditions and they've done fine.