so i see watch dogs need a 8 cores i have a build made a long time ago and i see that more games may have 8 cores in the future so i am wondering which cpu out there is the best 8 core out there or should i just keep my i5-4670K also should i go with the this http://pcpartpicker.com/part/sapphire-video-card-112210140g or this card http://pcpartpicker.com/part/gigabyte-video-card-gvn770oc2gd