800w enough?

[theitaliansico]

ENERMAX MODU87+ EMG800EWT 800W ATX12V v2.3 / EPS12V SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply
Im selling this item on ebay and i was wondering if it had enough wattage to pump dual 570's in any system even with alot of overclocking. Also can it handle any single end setup such as GTX 590?

 

[rolli59]

YES! http://www.anandtech.com/show/4239/nvidias-geforce-gtx-590-duking-it-out-for-the-single-card-king/16

 

[theitaliansico]

Best answer selected by theitaliansico.