Older thread, but worth it to bump I guess.
I have a core i7 940 (4 cores + 4 from hyperthreading) and although I haven't set anything on or off, Civ5 seems to only tax about 13% to max 25% of my cpu. Even during turn changes, which take quite a while and I assume are pure load on the cpu.
Is this a common phenomenon or should I start tweaking with cores and hyperthreading to optimize Civ's usage?