it's your cpu. most games arent optimized beyond 2, 3 or 4 cores. fast 4 core is still best for gaming, your 8 core is wasted. Everyone knows this. Should have bought an i5 instead of your 8350 for gaming purposes.
It's not his CPU. This game is horribly optimized and limited to two heavy threads with one doing most of the work. The speed ratings are almost all lined up based on single threaded performance which is what you can expect for the FPS version of Madden. CoD: Ghosts has absolutely sh!t graphics for it's performance, it's got the same problem as the last few CoD's, infected by consolitis.
Personally, after reading so many people posting their experiences and the same pattern of system resource usage, I believe IFW has the game artificially limited in performance to be exactly the same as on their console versions. I do not know why they would do this but people getting 40~50 FPS with absolutely nothing being bottlenecked or showing anything remotely close to 100% utilization is fairly common. I'm smelling shenanigans amongst the IFW folks.