Is the speed of light the upper bound on CPU speed?
Can the CPU can run faster than the speed of light?


Information cannot travel between parts of a CPU faster than the speed of light. Ref


  I have seen a news saying that some quantum action is 10,000 times faster than light


You (originally) linked to a news article which says


  Whereas the result may sound like a way to send faster-than-light messages, it isn't