Tekken 3 is originally released for Playstation but you can play it on PC with emulators. So the system Requirements for Tekken 3 are according to the emulator requirements.
Tekken 3 Minimum System Requirements
Tekken 3 Recommended System Requirements
Tekken 3 Trailer
Although these Tekken 3 System Requirements are for emulators, if the emulator runs then your game will also run that is the basic concept. I myself used to play this game on a very low-end PC, so I’m sure it will work smoothly with the above-given minimum and recommended system requirements.
If you have any more doubts then please ask in the comment box. Thank You.