‘Game of Thrones’ (Helen Sloan/HBO)

The third-season debut of HBO’s swords-and-sex drama, “Game of Thrones” clocked a series high 4.4 million viewers in its premiere Sunday at 9 p.m.

That beats its previous high: 4.2 million snagged by last season’s finale. Ditto last season’s premiere crowd of 3.9 mil.

The third-season debut episodes played three times on HBO Sunday night, cuming an audience of 6.7 million viewers, outstripping last season’s debut night cume of 6.3 million