FPS drops

Before running games to note FPS changes, I'm watching the CPU speed, and seeing MAX:4134 MIN:3389 AVE:3388.
I'm wondering if this is from the CPU throttling or instrumentation timing etc.
I'm running Prime95 constantly to verify (to me) that I have good MoBo, CPU, & RAM (all looks good so far).

Martin said:
That depends on CPU.. Could be because of SpeedStep, or Turbo mode balancing.

Sorry for leaving out important details!
Mobo Crosshair V formula Z
CPU FX8350

// Awright, who stole my .sig?