That is not enough.
I am really a bit nervous about the performance of the game.
I run NS2 on this
intel i7 950
In spectator, i usually get around 90 frames, ingame around 50 till 60. But once i get in combat my fps drops to 25 and late game, when there is alot going on on the screen , it drops as low as around 11-15 frames, making the game unplayable.
I really don't know alot about coding, but even if UWE is able to double the framerate, that is still really low, and people will be pretty unhappy about the games performance. Don't do the same mistake like Red Orchestra 2 did and fix the games performance after release ( even though RO2 still ran around 30 - 40 frames easily)