50 - 60 fps over london with no action, right? Because none really gets stable 50-60fps in this game all the time --> With no card and not in that resolution. Sounds to me, that something is missing. Explosions,multiplayer etc. Sorry, but there is something missing.
2gb ram could be enough, but not for future and not with that interface and not for sli with triple screen.
Just test, if you set also everything to highest detail in your driver! Then play sime while and report again.
Never saw any rig doing clod constantly over 50fps with that resolution and with highest settings.
Btw: your card should be already overclocked if i am informed right! So...
