If you honestly believe so, then you believe wrongly...
(Your probably fail to realize its 670 Watts Peak and 610 Watts Continious and even if it was 610 Watts Peak, it would still be enough)
i never said it can't handle it. but i'd rather not use adapters IMO because you may need those connectors for something else. then you are left without connectors for the video card. so if you are going to do it, do it right the first time.