Activision's Chief Financial Officer Tom Tipple told investors at a recent finance conference, this sales figure tops 2009's Modern Warfare 2 by 16 percent.
5.6 million copies of Black Ops left store shelves after the game was first stacked upon them on Tuesday. Again this tops the 4.7 million sold by Modern Warfare 2 in its first day of shelf life.
"There has never been another entertainment franchise that has set opening day records for two consecutive years and we are on track to outperform last year's five-day global sales record of $550 million," Bobby Kotick, chief executive of Activision Blizzard, said in a statement. "The game's success underscores the pop culture appeal of the brand. 'Call of Duty: Black Ops' is the finest game that Treyarch has ever made and raises the bar for online gameplay by delivering the deepest and most intense Call of Duty experience yet."