Average computer, hashing with a CPU, is probably close to 1000 kh/s, or 1 mh/s.
Hashing with a GPU is significantly faster, around 80000 kh/s, or 80mh/s for an average GPU (for computers that have dedicated GPUs).
What kind of GPUs are you talking about? A 5450?
Higher than that, I'd bet that for computers with dedicated GPUs, they're usually on the 5670 level or so, or about 80 mh/s