the only time Ifrit may out damage Garuda is with a MNK in the group for DK debuff.
still no, let's say ifrit hits 215 damage every 4 seconds (autoattack + burning strike), that's 3225 damage per minute + 10% monk debuff = 3547, 2 flaming crush and 1 crimson cyclone, (115 each x3 then add 10% = 379) 3926 damage per minute.

garuda, let's say she hits 205 damage every 3 seconds, that's 4100 damage per minute.