Updated: September 23, 2012, 1:31 PM ETAssociated Press
The seventh-ranked Tsonga needed just 50 minutes to win, breaking the Italian's serve four times.
Tsonga won 85 percent of his service points.
He won nine games in a row to take a 4-0 lead in the second set.
It is Tsonga's second title of the year, after the Qatar Open in January, and boosts his chances of reaching the year-ending ATP finals in London.
Copyright 2012 by The Associated Press