Maybe CPU throttling? Check out these threads:
I highly doubt it's the CPU bottleneck considering this video .
I'm using HWMonitor to check my cpu temps and frequencies. My cpu never reaches 50C and the max frequency my cpu has hit is 4323MHz, which is my desired overclock. I was told saints row is badly optimized for FX processors while other games that have constant fps drops only happened when there's a lot of things on the screen. I have 2 intake fans, both 140mm that are always running at max speeds and one 120mm exhaust on the back. Maybe it is the vrm, guess I'll just stick with this build until I can upgrade to skylake.
I'm glad you [sorta] found your problem lol. You should wait for what AMD has to offer on December 13. :)