Welp unity is having 100s of issues. I just boubought a new GPU and chose the crew over unity because of the issues. Anyway, for gaming, your best bet of an OC is the GPU. Before u dig into this, do your self a favor and thoroughly clean out your PC of any dust first including the GPU and CPU heat sinks. For your cpu, make sure U have a good PSU and heat sink. A perfect OC for gaming would be between 4.4-4.6ghz. There's thousands of guides online. For the GPU, use MSI afterburner and turn up the core clock until games start to crash or artifact. After it does and you've tested multiple games reduce the clock ~20mhz for stability. If temps are in control (search the max safe temp for your gpus) add voltage and repeat the process. For the memory, just increase it ~200mhz. Memory dosent make too much of a difference in fps. Only a few fps. Then create a custom fan curve to keep temps under control automatically. Save settings and make sure the program starts at boot.