Sixteen quarterbacks made the NFL Network's Top 100 Players of 2018, a list voted on annually by players around the league.
"Not yet, not yet," Ramsey told Kurt Warner and Michael Irvin during a recent appearance on the NFL Network. "What he play -- five games?
"He has good potential. I think he'll be a good player, but off my experience in playing him, it was a lot of scheme stuff. It wasn't like he was just dicing us up. It was a lot of scheme stuff."
Ramsey saw Garoppolo in Week 16 of the 2017 season, and Garoppolo led the 49ers to a win by completing 21 of 30 passes for 242 yard and two touchdowns against an interception, adding 3 yards rushing and a touchdown.
Still, Ramsey didn't appear too impressed and defenses could be better prepared to face the San Francisco signal-caller going forward.
"Nobody had a scheme on him [in 2017]," Ramsey said. "There was not a lot of film out on him."
"And that is a big deal," the Hall of Fame quarterback said. "That's a big deal when they know your strengths and weaknesses and how to attack them."
Garoppolo enjoyed success in 2017, going 5-0 as a starter and passing for 1,560 yards and seven touchdowns against five interceptions. San Francisco was sold on Garoppolo as the team's future and rewarded him with a five-year deal worth $137.5 million during the offseason.
"It's a small sample size that [Garoppolo] has, but I tell you what, it's a pretty shiny sample size," Irvin said. "To go 5-0, and then get that big number he got in the offseason, so I'm happy for him."