Has anyone else been noticing GPU usages going up and down during campaign play? Multiplayer seems just fine but in the campaign, first mission, this happens to me frequently causing my FPS to go from 50-60FPS to 20-30FPS. This is not due to power states, the game just goes from 99% usage to 24-28%. I monitor these stats with EVGA Precision.

My system specs:
i7 950 Bloomfield @ 4.0Ghz
EVGA x58 Classified 3 SLI
12 GB Corsair Dominator
2x EVGA GTX 580 SC SLI
1200WCorsair Professional Gold Series PSU
2x Western Digital Velociraptor 300GB HLHF in RAID0
2x Western Digital Velociraptor 600GB HLHX in RAID0

Using 314.07 WHQL Drivers

I think this will answer my question. I had read about this previously but thought my issue was different due to my usages going down.

http://www.geek.com/articles/games/rope-physics-is-killing-the-framerate-in-crysis-3-20130226/

Let me know what you guys think.