The difference, by the numbers
Both have sweet vermouth. Only the Rabo de Galo has cachaça and Cynar; only the Tipperary has Irish whiskey, Green Chartreuse and Angostura bitters. In parts, a Rabo de Galo is 3 cachaça, 1 vermouth and ¾ Cynar; a Tipperary is 2 whiskey, 1 vermouth and ½ Chartreuse. By volume, the Rabo de Galo is 63% spirit and 37% fortified wine and bitter; the Tipperary is 55% spirit, 28% fortified wine and bitter and 17% liqueur. That makes them close cousins on the ratio map.
The Rabo de Galo is the stronger drink in the glass (25.0% ABV against 23.9%), but the Tipperary is the bigger drink, so it holds more alcohol (1.86 standard drinks against 1.67). The Tipperary has more calories (about 212 against 185) and more sugar (7.5 g against 5.2 g). The Rabo de Galo is built and served in a rocks glass; the Tipperary is stirred and served in a martini glass.