* Photons are the fundamental particles of light. They are the quanta of the electromagnetic field.
* Electromagnetic waves are the way that photons propagate. They are the disturbances in the electromagnetic field that carry energy.
So, a photon *is* an electromagnetic wave. There's no difference in speed between them.
Here's why it can be confusing:
* We often talk about the "speed of light" when we really mean the speed at which electromagnetic waves travel.
* Photons can have different energies, which can manifest as different wavelengths (and therefore different colors) of light. However, all photons travel at the speed of light in a vacuum, which is approximately 299,792,458 meters per second.
In summary: There's no comparison to be made because photons *are* the carriers of electromagnetic waves. They both travel at the same speed.
