I really interested in the R9 290 is probably gonna be cheaper and on par with a 780, also I highly advice to stay clear of the reference card, AMD did what you would expect to cut the cost, they slapped a crappy cooler on to it witch I don't mind, this card would smash the titan in the reviews if it wasn't for the reference cooler, when it gets to 95C the card starts to throttle down and the ref cooler fan only goes to 55% speed.
Only reason I'm upgrading tho is because of BF4 and I really need the extra memory, my 670 is bottlenecking, memory wise at 1600p. Cheers