Battlefield 4 Beta Gameplay on Radeon HD 7970 Ghz Edition

1920 x 1080, High settings settings, no AA, FOV 90 - 50 fps in around, sometimes it drops to 30 CPU - AMD FX 8150 3.6 GHz GPU - Gigabyte Radeon HD 7970 GHz Edition 1100 Mhz RAM - 16 GB 1600 Mhz Motherboard - Asus M59A99FX Pro R2.0 PSU - Chieftec 850W