Like I said pastymuncher could overclock his Core i5 4670K and another chap on overclock.net could not.
Microcode is something integral to the CPU and many chips:
http://en.wikipedia.org/wiki/Microcode
MSI touted some budget overclocking B85 motherboards for the Pentium dual core so there must some new kind of exploit.
The Pentium dual core is a definitely a no no if you are looking at Watch Dogs.
Even when overclocked it is horrible it seems in the game.
I would say at least a Core i3 then or the AMD equivalent(FX6300).
i3 is getting ordered tomorrow night off overclockers, will use it for a wile then upgrade to i5 in time, will i see a difference going from q6600 to an i3?