Greek and Roman Gods and Goddess?

Are the Greek and Roman Gods and Goddess equivalent of each other?

Hestia = Vesta (gave up throne for Dionysus)
Demeter = Ceres
Hera = Juno
Hades = Pluto
Poseidon = Neptune
Zeus = Jupiter
Ares = Mars
Athena = Minvera
Apollo = Apollo
Artemis = Diana
Hephaestus = Vulcan
Dionysus = Bacchus
Hermes = Mercury

True or False?