The Spanish striker has again struggled in front of goal this season, but the arrival of old mentor Benitez appears to have inspired Torres, who ended his latest barren run with four goals in two games.
Torres scored twice in wins over Nordsjaelland and Sunderland and Benitez believes the £50m signing has eased the pressure on his shoulders by helping Chelsea get back to winning ways.
"When a striker is scoring, he is happy, happy," he said. "I've noticed the difference in him too.
"To be fair, the team is doing really well. I'm not surprised because they are all training very well. You don't have anyone who is lazy. Everyone is trying to do the right things.
"Everybody has been talking for months about, 'Fernando has to score more goals' so to score four in a week, he must be pleased. That's everyone, but especially the striker."
Chelsea were denied more preparation time for this week's Club World Cup after failing in their bid to postpone Saturday's match with Sunderland and Benitez feels that English clubs begin the tournament on the back foot.
"When you have massive competitions, you have to give teams an advantage," he said.
"When Barcelona were here, they were able to get out before we could.
"You always have to be treated in a way that shows you are representing your country. That is important for everyone."