I have a question about what I should do about my Cpu and gpu.

I had orignally planned to go with an i7 6700k and a gigabyte g1 gaming geforce gtx 980, but I recently found out that the i5 6600k is about $120-$130 cheaper and that could allow me to try and get a tier 2 980 ti (gigabyte g1 gaming 980 ti).

I was wondering which one I could go with.


P.S. I can get into some OC because I have a decent cpu cooler (Noctua nh-d15) and I have about 5 case fans so I feel I have pretty damn good airflow