Would the unlocked 4th core make much of a difference in terms of bottleneck.
It's currently at 3.0Ghz, is that a bottleneck for the GTX 560 Ti?
In the first place, I do not think there will be a bottleneck. I got an unlocked PII 720BE driving 2x6950 2GB video cards across 3 screens at 5760x1080. Even at stock 2.8GHz clock I do not experience any slow down at any point in Crysis 2. FPS at 45-60 which I believe is more a bottleneck on the 2x6950 so as soon as I got a bigger power supply I am going to overclock them big time to boost the FPS. (too sissy to unlock to 6970).