Hi guys, at the minute I'm considering upgrading to a 5770, as I have three monitors I want to connect. Since I'm going to be gaming on only one though, how much performance would I be losing running in triple monitor mode? (The monitor resolutions will be 1920x1080, 1680x1050, and 1280x720, and not doing anything complex, such as showing a web browser or Iplayer on the second and third). Thanks!