In Wolf: ET which is even more objective-driven than BF2, on some servers you would be voted off if you completed an objective. That plus a few other problems drove me away from the game.
Urgh!
But I have a feeling the release version will run better on dual core CPUs than the alpha. Dual core being 1/6 the speed of a quad doesn't make sense.
Isn't the Witcher 2 engine known for loving more cores? I would think that is just the current trend of these 'next gen' game engines.
The extra cores certainly make a difference to the Phenom 2. But then a quad Nehalem based i5 is already faster so a Sandybridge i5/i7 would blow it away. The big question though is will a 6 core Nehalem beat a 4 core Sandybridge (not that it would be worth the extra cost anyway unless you're rich!)
I think I have seen a few articles where the 990x that I am running right now came out on top in terms of performance compared to an overclocked Sandy Bridge. Somehow it feels like Intel has not really launched their secret weapon which I think will be Ivy Bridge and that is one of the reasons I stayed with the 990x. (that and that STONKING deal I got!) But yeah purely from a cost pov I think it's best go with Sandy Bridge especially if building a new PC from scratch, ie new motherboard, ram etc.