I was wondering if my 7770 is a bottleneck to my i5 3570k because I read that the 3570k is a gaming powerhouse and the 7770 is a mid range GPU. But when I'm playing my games, the CPU usage is like 30%. I dont know if that is good or not but I really want to know. Please help.
Your 3570K is loafing.
It can drive a very much stronger graphics configuration.
If you are pleased with your FPS and eye candy, you need to nothing.
If you want better fps or more eye candy, or higher resolutions, then a graphics card upgrade is in order.