Most games currently do not support dual core CPUs.
I know some first person shooters support dual core.
ATI & NVIDIA both have dual core support built in to their drivers,
how much it really helps, I do not know.
I was using an Intel D 805 dual core for about 5 weeks, it was nice having
windows boot faster.
And when any program crashes, it will no longer use up 100% of CPU
resources, just 50%.
I sold because I could only overclock the D 805 to 3.31GHz, now I have a
brand new AMD/PCI-Express/SATA-II system
But as dual cores are now reasonably priced, one could assume that lots of
gamers will
get the dual core just to have it and game makers over the next few years
should be adding a lot more dual core support for their games.
I'm thinking of ordering a dual core (AMD X2 4200+) later today from
www.ewiz.com for $183.95 plus tax and shipping.
None of the games I play support dual core, I just want to have it.