No card. Scrypt is dominated by ASICs, you won't get any reasonable results with a GPU. Try GPU friendly algos and coins (X11, X13, X15, Neoscrypt).
but flappycoin is scrypt?? Im confused??
Flappycoin is a scrypt coin with low difficulty and network hashrate. So yes, with such coins you'll get your share. But with a price of 40-50 litoshi per FLAP, it's not really worth the used energy (unless you have free energy). The other algos are more energy efficient than scrypt.