The photoelectric effect demonstrates that EM radiation has particle-wave duality and it can be used to generate electricity. I am still a novice in physics and my understanding of this phenomenon is that when the energy in photon is high enough, it can remove electrons from an atom, and with higher energy it can increase the kinetic energy of the emitted electrons or with higher intensity it can increase the number of emitted electrons.
So can I perceive the photoelectric effect as "ionizing with EM force"? Is there any connection between this effect and the ionization triggered by EM radiation like the gamma ray? What are the main differences between this effect and the ionization by EM radiation?