I don't really see game devs bending over backwards to multithread anytime soon, unless Intel throws money at them to improve chip sales.
Most effort seems to go into *backwards* compatibility, not for bleeding edge stuff. A bigger install base improves game sales.
I was pleasantly surprised at how well Doom and HL downscaled to slower boxes. Take a look at the Steam hardware survey....there is a lot of old stuff there.
If multicore becomes mainstream priced by '07, expect *common* game support by '09. Sure, there will be a game or two tailored for it by next year, but probably just for showcasing the tech.
As far as OCing dual cores, I'm expecting mobo meltdowns similar to what was first seen when prescott was introduced. The procooling crowd won't have a problem cooling the cores of course. That won't be the limiting factor. I dont' see existing 939/940 board mosfets taking nicely to overvolting 2 cores.
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