Matt Giteau was the star of the show and celebrated his 50th Test cap by scoring two of Australia's seven tries in a personal haul of 27 points.

The Wallabies enjoyed a mountain of possession and rarely needed to get above second gear as they worked a hat-trick for Drew Mitchell and tries each for Adam Ashley-Cooper and Stephen Hoiles.

Fiji's game was riddled with errors and despite scoring twice, through winger Isoa Neivua and flanker Ace Ratuva, they never came close to threatening the Wallabies.

Fiji, who made 11 changes for this game, now head to Nantes for a winner-takes-all clash with Wales. At stake is a quarter-final place against South Africa.

Fiji will be at full-strength next week and are a threat when their natural attacking game clicks.