The Gunners fought hard to force a 1-1 draw with the French giants at Parc des Princes in their opening Champions League group game of the season.
Alexis Sanchez cancelled out Edinson Cavani's early opener in the 78th minute in a match which saw the visitors with their backs against the wall and prompted David Ospina to produce a brilliant second half after being given the nod over Petr Cech.
Ferdinand was also complimentary of Mesut Ozil who produced a quality cut-back pass to Alex Iwobi which lead to Sanchez's goal.
"It's a great point away from home," former Manchester United defender Ferdinand said on BT Sport.
"It was the only moment of the game Mesut Ozil came alive. The cut back to Iwobi was fantastic. That isn't an accident; he's picked him out.
"There are a lot more games to play but this is a very good start. They would have taken this on the plane over.