so been experimenting with the graphics settings.
no aa (postfx set to high) 16xaf ultra at 1920x1080 = 900MB vram useage and a minimum frame rate of 90.
4xaa 16xaf ultra at 1920x1080 = 1250MB vram usage and min frame rate of 55-60
i think maybe 2xaa 16xaf with post fx either off or low might be best. post fx seems to be blurring the image a lot.