To make him the highest paid receiver, he needed a guaranteed package of more than the $55 million commandeered by Tampa Bay's Mike Evans and/or an average annual salary north of the $17 million figure commanded by Pittsburgh's Antonio Brown.
Brown was the highest-paid receiver in football prior to Beckham inking his new deal.
The 25-year-old Beckham was entering the fifth and final year of his rookie contract, with a base salary of $8.4 million.
He showed that by not holding out this offseason, but there still were lingering questions following a few off-field incidents, including a photo purportedly of Beckham in Paris this March that raised questions about what an unknown white powder seen with the receiver and a model was.More news: Fast data is critical to firefighters
"Honestly, I don't even know how to explain it", Beckham said in a statement. "You've worked all your life to get to this point and it's finally here".
During his first four seasons in the league, Beckham has 313 catches for 4,424 yards and 38 touchdowns, including at least 90 catches, 1,300 yards and 10 touchdowns in each of his first three professional seasons.
"I knew that it would get done; it just was a matter of when". Then the team that was said to be most interested in Beckham, the Rams, appeared to drop out of the market after acquiring receiver Brandin Cooks and a fourth-round draft pick from the Patriots.
Beckham has not played in any of the Giants' three preseason games as new coach Pat Shurmur has taken a very cautious approach with the catalyst to his offense coming off his first major professional injury.