Is my PC ready for Watch_Dogs?

Hi everybody,

Basic Question: Is my Pc powerful enough to run Watch_Dogs on high - ultra @1920x1080?

My Specs are :

CPU: Intel Core i5 4670k @3.4ghz (not yet! overclocked)

GPU: Gigabyte (Windforce cooler) GTX 770 (also not yet overclocked)

Ram: 8gb Corsair Vengeance @1600MHz (could oc but does it make much sense?)

No ssd, no cpu cooler (might be an option for the future)

Only 600 Watts psu (80+ duh) , so might not be able to handle all the overclocking...

Win7 (64 bit (duh again))

System requirements:

http://www.pcgamer.com/2013/10/08/watch-dogs-system-requirements-announced-specify-64-bit-os-and-minimum-6-gb-of-ram/

Bit concerned about the 8 core cpu recommendation??

Thanks guys!!

PS: Have enough money for another 8gigs and a decent cpu cooler.