Side note:
I think Intel has some new tech that will scale performance of cores based on workload.
For instance, if you are running a single-cored game, it will over-clock 1 core to some insane GHz and shut down the other cores...and vice versa. Sorta a best of both worlds system.
Did some Google searches, surprised to see one of my games, "Warhammer" (or "Wowhammer";-) has multi core support. Once the consoles go multi core, I think that is when you will see the last of the new games coming out without being designed for multi core. Unreal Engine 4 is for the day when we have "massively multi-core processor" according to Epic's Mark Rein.
Anyone remember the days Amiga folks use to rag on Window users for not using a multi tasking OS? My, how times have changed as hardware evolved. I know, just use Linux and be happy it can do the grunt work in a SMP environment.