I currently game on an old system that has an i5-2500k with a moderate OC to 4ghz. I did have a 560ti but it finally died after some years. I recently bought a gigabyte G1 Gaming 1060 6b. I feel like my cpu is is holding my new GPU back (bottlenecking). Is it time to upgrade the cpu? I was looking at the i5-(7600k-8600k). Also, my ram is ancient too at 1600mhz. Will upgrading to a higher ram speed help my performance?