For those of you who were asking if you're getting the normal rates, you can use this chart as a general guide.
https://litecoin.info/Mining_hardware_comparison. It's not a definitive guide, and there's a link they call the "raw data" page with a bit more updated information, however it hasn't been filtered or sorted as the 1st link.
https://litecoin.info/Mining_hardware_comparison/raw_data is that one. You can look at your model number there though and get a good idea if you're in the ball park or not of where your card is.