Price/Performance: Gigabyte z97x-SLI. Raw performance: Asus Maximus VI extreme or similars.
Agree with him, The best board for that would be an Asus Maximus Board.
If you can go up to $200, the Asus Maximus VII Hero is the best choice. The Maximus VI is cheaper too, but you will have to do a bios update, which is easy with ROG board, you just plug in a USB flash drive with the bios on it, in the designated usb port. But if you want to get something cheaper, I would suggest an Asrock z97 Extreme4 or MSI z97 Gaming 5.
I agree with Ytyoussef, Asrock z97 Extreme 4 or Asus Maximus VII Hero, Both Boards have excellent reviews, but obviously the Asus is much better