When i first got this computer i was told the 6400 might be a bottleneck, out of the box is runs at 2.7 GHz and turbos to 3.4 it believe. I plan on getting a new mobo in the near future and i was wondering if my lack of performance in games like AC Origins, SGW3, etc were because of the CPU or because of my GPU. I have a reference GTX 1060 6GB. Thanks for your input!