"Knowledge is key for me," he said.
"As a centre-half it is about being in situations you recognise yourself in.
"You play in so many big games all over the world, it builds experience you can lean on at times.
"In my position, experience counts for so much. As an attacker, your better years are a little earlier, maybe 26 or 27, because the position is so explosive, for a defender I feel it is right where I am now."
A similar point has been made by Harry Redknapp, David O'Leary and Sir Alex Ferguson over the years. Old West Ham team-mates Slaven Bilic and Iain Dowie also pointed out the benefit of maturity in a defender, leaving Ferdinand convinced he can improve.
"I would say the best is still to come," he said.
"A lot of people said my peak time would be after I was 30 because of the position I play in. I am beginning to feel that way now."