Roger Pride, Managing Director of Cardiff & Co, talks to Business Correspondent Carole Green about the effect this weekend's match has had on Cardiff.
"A typical Six Nations game will bring in about £10 million to the city. This will have brought in considerably more" he said.
"This could be regarded as the first social media Grand Slam. The people who've come to city and had a great time are going to be tweeting and on facebook. These images are going to be sent all around the world".
The Wales and Dragons flanker Dan Lydiate has been chosen as the best player in this year's 6 Nations Championship.
First Minister Carwyn Jones has welcomed Wales’ victorious Grand Slam squad to the Senedd to present the Six Nations trophy to the team.
The Welsh Government has invited the Grand Slam-winning team and Wales fans to the Senedd for a special event this evening.