Currently running a8 3870k crossfired with a 6570. Screen Resolution is 1360x768. Play Kingdoms of Amalur mostly. Looking for a low profile card that will be an improvement over my current crossfire config. I know i will lose the ability to use dual graphics with the APU if I go with a more powerful card. What low profile card would be an improvement over my Current setup? Been researching 6750, 7750,