In short, only if your electricity is free.
Back of the napkin says:
At ~75MH/s and current difficulty you'll earn about 0.05 bitcoins / 24 hours, or about 25 days for a bitcoin.
At the current exchange rate of ~$5.80 / BTC you'll make about $6 / month.
If you pay for electricity, your rig is probably using around that without
mining. I can't imagine how much your rig would use running that GPU at 98%+ constantly, but a lot more than $6 worth I'd wager.
If you don't mind inflating your electric bill a bit to contribute to the network and have some fun, by all means, but it's far from profitable if that's what you're after.
Sorry to deflate the balloon