Freeza teleports right in front of the opponent with the LK version and then performs the elbow attack.
With MK, he teleports behind the opponent and then does the elbow attack.
With SK, Freeza teleports above the opponent, setting him up for a surprise. He doesn't automatically perform an elbow attack here.
The EX version will perform the teleport of the LK version and then an autocombo upon impact;
a side-switching teleporting knee kick that launches the opponent up, directly followed by a teleporting tail flip that knocks them back to the ground.
When the LK, MK or EX versions performed in the air, Freeza will teleport down to ground level and then perform the attack.
For the aerial SK version, he teleports down to the ground without doing a follow-up attack.
This can be used to dodge incoming anti-air attacks.