"Every new player comes in and tries to carve out a niche for themselves. I think it is a danger to try to be the 'next' person. You should never put any limitations on how good somebody can be and I wouldn't try to do that," said O'Driscoll.
"Garry is his own player. He does things that I didn't do as well as him and maybe there are some things he'll learn that I learned over the course of my career.
"It's unfair to compare any two players. People say they see similarities, that's not really for me to say.
"I'm really excited by him, I think he has all the attributes to be a top-class player. He sees the game a little bit earlier than most people.
"He sees the game unfolding. That's important for young players looking to survive in a pretty attritional game."
Ireland's next game sees them host France on February 24. Both sides are approaching the game after wins, Ireland won in Rome while France squeezed passed Scotland in Paris.
Peter O'Mahony was named man of the match against England last month
21 April 2017, 7:22pm
Peter O'Mahony's performance in the RBS 6 Nations finale for Ireland against England was crucial to his selection for the British & Irish Lions on Wednesday, Ireland and Lions defence coach Andy Farrell has revealed.
Iain Henderson scored the game's only try in Ireland's win over England in Dublin
6 April 2017, 5:12pm
Ireland captain Rory Best believes compatriot and Ulster team-mate Iain Henderson has done enough to earn a call up to Warren Gatland's British & Irish Lions squad after finishing the RBS 6 Nations on a high with a standout performance in their 13-9 victory over England.