i wouldn't be worried about this except for the fact that newegg says i need 1000 watts of power for crossfire for the r9 280x (specifically the sapphire toxic edition). (does the parentheses go in or outside the period?) i am also going to be running a 8350 and with the high end heatsink i will be getting i will probably never have it clocked lower than 4.5 GHz, probably. i know that the 8350 can be a big ass power hog so this worries me especially if 2 280x's would draw 350w each. so how much power do i need.