Valefor.Prothescar said:
»Honestly yeah... at this point in time I'd offer anyone who's serious about upgrading their PC the advice of going with a Kepler GPU, and in that I'd tell them to buy a 670 or two. 680 is plain unnecessary for the $100 increase in price, you lose a miniscule amount of performance after you overclock the 670 a bit, and 690 is for those who really want shiny toys.
Or someone who just wants their 2 chips on one board.
That was my case at least.
The x58 saber-tooth has limited space between it's PCIx16's so to avoid heat issues I chose the 590 over 2x 570's.