Well my main computer has 6 clients, the main is ultra and the rest are low cept view distance is good. My main is easy 30fps and the others 15fps and they don't break follow. I am sure I could do better but the game is playable at 15fps actually

My main computer has 64g ram with wow in ram, and a 670 4G video card. I am at 1920 X 1200.