How fast should my hashcat be running??

[mastercracker]

To go back to the original question, the speed will be dependent on the number of hashes of your list (actually, the number of salts would be more appropriate). Try an attack on 1 hash, look at the speed and divide that speed by the number of different salt your list has and it should tell you roughly what speed to expect. On my old GTX460, I get about 120M/s so I guess that your hash list is pretty big (>22000).