The match will be a best of 12 games. Players score 1 point for a win and half a point for a draw. Time control will be 120 minutes, with 60 minutes added after move 40, 15 minutes added after move 60, and additional 30 seconds per move starting from move 61. The match will end as soon as any player scores 6.5 points.

If, after 12 games, the score is equal, a tie-break of four rapid games will be played. Time control for these games will be 25 minutes plus 10 seconds per move. In case of equal scores two additional blitz games will be played (5 minutes plus 10 seconds per move). If these games do not decide the winner, a decisive Armageddon game will be played (6 minutes for white, 5 minutes for black, black declared champion in case of a draw). There will be a new drawing of colours before rapid games, as well as before blitz games and an Armageddon game.

World Chess Championship 2008
Official Website

I find a head-to-head match-up like this more exciting than a round-robin (e.g., the World Chess Championship 2007) for a world chess championship. In the former, you’ll have the opportunity to witness the rush of blood as players hammer each other on a round per round mental combat. Get yourself marveled at how each player switch strategy in the middle of the match to accommodate the outpouring pressure. In the latter, oftentimes you’ll just wait and see till the last round who has the nearest reach to the crown.

A round-robin world championship will be just like a boxing match, with eight players inside a ring at the same time. The last man standing will be the world champion. In chess, most likely you’ll just wait and see by the end of the show who will come out victorious. But in boxing, hey, this is pretty exciting!