bro, did bf4 hung after some time? mine is 570 too and crashed..

btw u asking for multiplayer or campaign? i follow below setting from youtube, so far no lag or just small stutter..

Resolution: 1920x1080 (60 Hz)
Resolution scale: 100%
Field of view: 70
Texture quality: High
Texture filtering: Ultra
Lighting quality: Ultra
Effects quality: Ultra
Post process quality: Low (Always on low even if game is very stable on ultra settings)
Mesh quality: High
Terrain quality: Ultra
Terrain decoration: Ultra
Antialiasing deferred: Off (don't need at 1920x1080)
Antialiasing post: Off
Ambient occlusion: HBAO (the best)

sos : http://www.youtube.com/watch?v=1DTazW7A2vg