France claim record score against Wales.
Fabien Galthie's team back up victory over Ireland to maintain Grand Slam hopes in Cardiff.
France score three early tries to take dominant lead before Rhys Carre responds for Wales to reduce the deficit.
Matthieu Jalibert scores bonus-point try just before half-time.
Julien Marchand and Theo Attissogbe - two - continue the French domination in the second half with further tries.
Charles Ollivon scores eighth French try before Mason Grady claims late consolation try for Wales.
But Welsh fans express their anger at state of the game in Wales before the smallest attendance for a Six Nations match in Cardiff.
Read the full match report.
And have your say using the 'Send us your views' box below.
FT: Wales 12-54 France
Danny Care
Former England scrum-half on BBC One
He has so much the energy, you see how hard he's worked today, he's been everywhere.
Image source, Getty ImagesFT: Wales 12-54 France
Gareth Rhys Owen
BBC Radio Wales commentator
Is this the new norm for Welsh rugby? No shock, no anger. Clear difference between the two sides.
Steve Tandy has a huge job ahead of him but so does the entire Welsh community of Welsh rugby.
It feels like another long, hard arduous Six Nations for Wales.
FT: Wales 12-54 France
Big call from Steve.
I'm going to call it and say Wales can take two victories from the last three games of the tournament.
Steve, Ponty
FT: Wales 12-54 France
Some of the official Six Nations stats from this game.
They really don't tell the whole story - France were way more clinical and sharp than Wales. The tackle success rate is alarming...
FT: Wales 12-54 France
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Another heavy defeat for Steve Tandy's Wales, as France maintain their Grand Slam hopes with a dominant win in Cardiff.
Let us know what you made of the game.
FT: Wales 12-54 France
Danny Care
Former England scrum-half on BBC One
France have been an absolute joy to watch.
Another tough day at the office for Wales.
It's two teams in completely different points of their cycles at the moment. French rugby is absolutely flying, Welsh rugby needs some work.
That's it.
Wales are put out of their misery, although they did manage to get the final score of the game.
France finish with eight tries for their biggest win against Wales in Cardiff... although the margin of victory was less than the 43-0 in Paris last year.
They are the fourth team in five games under Tandy to score a half century in Cardiff after Argentina, New Zealand and South Africa enjoyed their autumn visits.
Image source, Getty Images
Grady try
Wales tap it and then hammer away - with Wainwright victim of a huge hit - before the ball is spread to the right for Mason Grady to go over from Louis Rees-Zammit's pass.
Jarrod Evans' kick goes wide.
Image source, Huw Evans Picture AgencyWales 7-54 France
Wales hunt a consolation after scrum penalty earns field position.
Hard carrying in the 22 moves them to within yards of the line and then Taine Plumtree is held up.
Back for a penalty and Wales will still chase their second try.
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Can I wake up soon? I’m not enjoying this dream.
Jacob, Brighton
Wales 7-54 France
Just announced - today's attendance is 57,744.
That's the lowest ever Six Nations crowd in Cardiff, fewer than the previous smallest crowd of 58,349 against Italy in 2002.
It appears Wales fans are starting to vote with their feet as events both on and off the field in Welsh rugby begin to grind the public down.
And I'd actually love to know how many of today's crowd are French because it feels like there are a lot of them.
Image source, Getty ImagesWales 7-54 France
It's all a bit manic out there and a Wales attack ends with a knock on by Aaron Wainwright, who has got through plenty of work, in the 22.
They have been second best by a distance but have still blown some chances in attack.
Wales 7-54 France
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It's been over two years of this. Will things ever get better?
Stuart, Cardiff
Wales 7-54 France
Attissogbe should probably have a hat-trick but failed to gather a kick through by Jalibert.
The Pau wing was strangely hesitant.
Wales 7-54 France
Another France debut in midfield with Stade Francais' Noah Nene on.
Les Bleus are hunting a NINTH try after kicking a penalty to the 22.
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Have mercy.
Is there a mercy rule?
David
Is there an option to surrender in rugby?
Dave
Image source, Getty ImagesWales 7-54 France
So just for the record, we've been looking through the history books.
This is now France's biggest ever score against Wales, surpassing the 51 they scored at Wembley in 1998.
They're also well on course to beat their biggest margin of victory here in Cardiff which was previously 33 points in 2000 and again in a 2007 World Cup warm-up.
Wales 7-54 France
Danny Care
Former England scrum-half on BBC One
That is unfortunately a consequence of Wales playing so many phases.
The knock-on effect of that is you punch yourself out and you're shot.
You can hear the French crowd now, they're bouncing.
Image source, Getty Images
