McDavid had nine points (one goal, eight assists) at the 2016 World Championship in Russia. His goal was the winner in the gold-medal game against Finland.
The rise in productivity is a natural progression, suggested McDavid, now 21.
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"I think I'm just a couple years older and a couple more years experienced," he said. "I think that makes a lot of difference."
The difference has been noticeable to Bill Peters, Canada's coach in 2016 and again this year.
"He's just a special player. He has been for a long time," said Peters, who will get to see McDavid more often next season after being hired as coach of the Calgary Flames on April 23. "Everyone's been well aware of that as he's come up through the ranks, but he's just taking it to another level.
"He's even probably quicker with the puck than he was two years ago. He looks to get his own shot. He knows how to take over a game when the time is right and he's a very competitive guy. That's one thing people don't talk about a lot with Connor, but he's very competitive and understands what needs to be done at the right time."
Buffalo Sabres forward Ryan O'Reilly, who was a teammate of McDavid with Canada during the 2016 World Championship, sees it too.
"He's just more comfortable," O'Reilly said. "At first when you're young coming in, you don't know a lot to expect. After going through one before and winning and having those seasons under his belt … I don't want to say he's more outgoing but [he's] a little more comfortable. It's cool to see.
"As a player, too, he's just gotten better."
McDavid, who finished with 108 points (41 goals, 67 assists) with the Oilers this season to win the Art Ross Trophy as the NHL's leading scorer for the second straight season, is leading Canada in that regard. But it's not the only way he's led.
"I think he's done an unbelievable job," said St. Louis Blues defenseman Colton Parayko, also a teammate of McDavid's on Team North America at the 2016 World Cup of Hockey. "He's been in the League in Edmonton for a couple years now, and I think it's carried over. He's done a very good job in the room. All the guys respect him a ton, and he's extremely humble. It's a good combination.
"On the ice, that speaks for himself, his leadership."