hey guys,i would like to know if a GS700 is enough to power my system and if its enough to run a 780 or 770
my system specs
Intel Core i7 3770k 3.5 ghz
AsRock Z77 Extreme 4
AMD Radeon 7870 2gb GHZ Edition (will soon be upgrading to a 780)
2X 4gb Corsair Vengeance LP 1600mhz DDR3
Seagate Barracuda 1tb 7200rpm sata 6 3gb/s
3 case fans including my hyper 212 stock fan