Also from Blambi at MythVillage comes word of electric playground's review of Myth III. Unlike the the beta tester, they didn't feel a GF3 was really all that necessary:

Much has been made of Myth III's visual glory via the GF3 card, but it looks fine even on a reasonable system without the GF3, with a good range of active and idle animations. The narration doesn't seem to be quite as epic and fitting as that from the campaign missions of the original game, but it's still bounds beyond standard computer game fare.

They gave the game a 90% rating overall.