Haven't tried it on a unit to know if this will help, but if you're interested, look under your Windows Power options to 'change plan settings', 'change advanced power settings', and finally 'processor power management.'
Not sure if you will see the same thing, but if the problem only occurs while plugged into AC power, try to change the 'system cooling policy' for 'plugged in' to 'passive' and see if there is any difference.
Otherwise, try changing the 'minimum processor state' to a higher number to see if there is any difference, but if you raise the 'on battery' setting, it will decrease your battery life some.