Highest end GPU setup for FX-8350

What is the highest end graphics setup you would appropriately use with an AMD FX-8350 without a bottleneck? Include Crossfire/SLI.

sli 690 no i would go with the 670 660ti sli 670 sli maybe but what do i know

Well, I don't like SLI or Crossfire or dual GPU cards, so I'd say a 7970 or 680