The striker gave the home side the lead 10 minutes into Sunday's north London derby as he converted a penalty, but saw his side fall behind after Eric Dier and Harry Kane found the net later in the half.
The Gabon international levelled the score with an impressive first-time finish from the edge of the box that left Hugo Lloris rooted to his spot.
Ramsey, who set Aubameyang up for his 10th Premier League goal of the season, said the 29-year-old pulls off such fine strikes for fun during the week and resembles the club's all-time top scorer.
"He does that in training all the time. It reminds me of Thierry Henry's finishes," the midfielder told BBC Sport. "He's been fabulous for us."
Arsenal then took the initiative with goals from from Alexandre Lacazette and Lucas Torreira to seal an important win over their local rivals, and Ramsey felt they had been spurred on by Aubameyang's effort.
"I think that was important for us to score that goal. Then you could really feel that the atmosphere was electric. That really helped us to get over the line and win convincingly in the end.
"I have been here for many many years, it means an awful lot to me and to the fans as well. I am glad I played my part and we can all go home happy tonight. They could have gone six points in front of us but instead we've gone above them. The atmosphere was electric, that really helped us over the line in the end."
Dier's celebration for Tottenham's first-half equaliser ended in a scrap between several players from both sides, but Ramsey says the disruption had no effect on the game.
"I'm not sure what went on on the touchline, something was said and the two teams came together," he said. "What happens on the pitch stays on the pitch. Afterwards we were fully concentrated on coming back to win the game."